A warm welcome to „fünfkommasechs"!
As you can see, we've got an old friend with us.
No need for introduction, I bet you all know him.
Jan Seyffarth,
Race driver...
Oh dear, now I have to list everything you do...
It's maybe best if I list what you don't do, that's probably faster.
Race driver,
driving instructor at the AMG Academy,
test- and development driver...
You are a presenter, too.
Yes.
Where? Eurosport?
Eurosport, DMAX, n-tv,...
I can be seen on „GRIP" from time to time.
Yes, on „GRIP"...
Then of course his own vlog.
We'll show that below, you know that already.
His own channel.
It really is more than a vlog,...
...it really is entertainment television!
You absolutely need to watch it!
Then photographer and most of all expert.
AMG expert. And that's nice...
...because we are sitting in a very special car today
for a special occasion! We are in an AMG GT C...
...Edition 50.
Why 50?
Clearly because AMG has its 50th anniversary this year.
And there is this special edition
in a „graphite grey magno" paint finish on the outside.
It really looks like a James Bond car
It's totally awesome! — It's a bit like the Batmobile.
Silvery leather everywhere. Silver safety belts.
Black... matte... this awesome DINAMICA microfibre headliner.
Everything you could possibly have.
And as you know, the GT C is so to speak
the slightly toned down version of the GT R
for normal usage on the road.
Though the GT R is also street legal.
And this weekend, we are on our way
to the family gathering of the AMG GT family.
By now, there are eight family members.
And we'll show them all now, so you get an overview,
because there are so many versions of the GT.
The weather is rather for „advanced drivers",
but we thought
that everybody can drive in the sunshine. — Yes!
And you know Jan.
Jan likes driving sideways from time to time,
especially at the Bilster Berg track.
So I'm looking forward to it!
It's so much fun, even in this weather.
Because the front axle has very much grip.
You can always turn. The rear swerves, but...
...I'd take it! Where do I have to sign?
Where can I buy it? Where is the salesman?
I'll put on this helmet.
I'll look like Humpty Dumpty.
One second.
Exactly, take off your glasses, that's better.
Now I look great, don't I?
Now we are safe!
Listen, the procedure is as follows:
I'll drive ahead and you just follow.
We have wet conditions, which means
that we'll have to be a little more careful.
Warm up the tires first. — Yeah.
And then we can increase the speed.
We are connected via radio, so I'll talk a little.
Okay.
And you'll just drive behind me and try it all out.
Great, cool, I'm excited! This is my car, you'll overtake.
I'll overtake you, and then we'll get started!
Perfect! See you later!
I'm a little bit scared!
So, Johannes... you'll get the shock of your life now!
Alright, Johannes...
I think you should be good to go now.
Listen: In the centre console, you know the game,...
...there is the gear lever, pull it all the way back once.
It is advisable to choose one of the drive modes
„S" or „S+" via DYNAMIC SELECT.
So sporty mode or „sport plus" mode.
But we'll leave the ESP completely on,
we don't touch that button.
And for the suspension, you can either choose
the first setting,
so that only one light is on,
so that you are in „sport" mode there.
Or you put it into „comfort" mode with the suspension.
And then we'll just start rolling.
I'm very excited! I don't know the track at all!
I felt a bit intimidated, first of all, because...
...when I heard that it's going to be the Bilster Berg,
I had a lot of respect, because I don't know it at all.
But it is famous
for being very demanding.
Yes.
It's like a rollercoaster.
And thank God we made it possible that you and I
did an exclusive „lead and follow".
Yes, we did a little coaching together.
Just to show – and that's extremely important in these conditions –
to explain and show somebody
how it works in these adverse conditions.
We even had a bit of aquaplaning on the track.
A bit of standing water. — Yes.
And still you could notice
that the GT R has traction.
That's the incredible thing!
We were lucky. We had a gap between two rain clouds
when it became a little more dry.
And you could feel that difference.
We started in very wet conditions,
and then it slowly became drier.
It steadily became better, and that wasn't too bad.
Especially at the end, when the tires had become warmer,
how the acceleration works.
So, now out of the pit lane...
50 km/h here at the Bilster Berg.
During a race, it would be 60 km/h.
As I said, wet conditions,
these are really bad conditions,
because this is neither fish nor fowl.
It's neither really wet nor really dry,
which means that we definitely need to warm up the tires.
Next to the track, we put some little helpers for you.
If you see blue pylons next to the tracks...
...that's a braking zone.
That means that somewhere there, you should „throw the anchor".
And red pylons indicate the entry points
and summits of the corners.
You can follow them, for example here on the left side...
now we can go to the right.
Always drive into the direction of these pylons,
that's your focus point.
I'll quickly tell you a bit about the Bilster Berg.
It's a typical test and presentation circuit.
Not a full-fledged race track.
This means that theoretically, you could drive races here.
But...
...concerning the course of the road...
you notice it here,...
...„Mausefalle" („mouse trap"),
that's what this part is called.
You would encounter some problems with a race car.
This is why it's a test and presentation circuit.
And this track is the only one
which also gives me a queasy feeling.
If I drive too many laps, I even get sick.
We'll slowly roll around the track in the first lap.
This is the back straight.
You must not forget
that you are sitting on 585 horses right now!
You should think of that.
The AMG GT R we are sitting in has 585 hp.
The strongest AMG GT of all the variants.
Many focus on the AMG GT R.
It is THE super sports car, and the flagship.
I am here with Jörg Letzel,
the product manager of the AMG GTs.
Jörg, what else is there?
We all know the GT R, the vibrantly green car,
„Beast of the Green Hell", as they say. — Yes.
But what else is there?
Sure, at the end of 2014,
we introduced the first two models of the family:
the GT and the GT S.
The two coupés
were very well received in the market.
And this spring,
we expanded the family,
introducing the aforementioned AMG GT R
in March 2017.
After that, the two roadsters: GT and GT C roadster,
which were also very successful in the market.
But also the existing models:
the AMG GT and the GT S were further improved.
We have increased the power
and expanded the portfolio of possible extras
in order to be able to offer every customer we have
the perfect car in this segment.
If we sort them and go through them one after the other,
where is every car located?
I believe that with the AMG GT, or the roadster
if you prefer a convertible
you've made a perfect choice.
It is an absolute sports car
that offers the driving enjoyment
that is typical for AMG.
The performance you would expect from a sports car.
This also means that if customers say
that they are just looking for a little more power,
the AMG GT S (the coupé) is made for them.
At our Driving Academy we even put this car on the race track.
And with options, that make the car even sportier,
like the AMG DYNAMIC PLUS package for example,
or the ceramic high-performance brake system,
this car offers the full driving enjoyment on the race track.
You can do all of this with the GT S?
Yes, you can! — Okay.
And as a special add-on...
...with the current model year since April 2017,
customers who chose the AMG GT S
in conjunction with the AMG DYNAMIC PLUS package, which I just mentioned,
can order the optional active rear wheel steering.
Just like you know it as a standard feature from the GT R or the GT C.
So there is a transfer between the cars.
So two steps down from the super sports car,
but still the same driving dynamics.
We are standing next to a really nice roadster,
with a nice open roof.
Roadsters aren't exactly known
for being super sports cars.
But can I get something like that from AMG?
A roadster that still offers the driving enjoyment of a really fast car?
Jan, I would say that our roadsters aren't primarily roadsters,
but primarily sports cars.
A sports car that makes the intensive experience even purer,
through the option of opening the top.
The sound, the emotions, the wind,...
...can be experienced much purer.
Especially for the roadster models,
my colleagues from development
have done everything they could
to make this car just as strong
as the coupés, with reinforcements
that generate nearly the same level of torsional stiffness...
...as the coupés have,
without a dramatic increase in weight.
But still, there is one more variant,
the GT C Edition 50,
which is also a roadster,
and which again raises the level a bit further.
Is that right?
Yes, absolutely. You just said: GT C Edition 50
as a roadster, but you can also have it as a coupé.
Because we surely have customers
who want the power
and technical features of the GT R
in their vehicles, but who are not looking for
that expressiveness that a GT R has
with its aerodynamic elements of the exterior.
Let us finally also talk about the AMG GT R,
we just have to talk about it!
It's simply the top car!
We have driven it on the track.
We like talking about it!
It always makes me smile!
Is it a car I can drive in everyday life
or is it a little race car?
Absolutely yes to the question
about the everyday life.
Of course, we do not only have customers
who permanently or on the weekends drive the car on the race track.
This car – you have to drive it to experience that –
can also be driven by somebody
who just uses it in their everyday life.
And people like you, professional race drivers,
are not underwhelmed.
So I can just drive it normally in my everyday life... — Yes.
...but if I feel like going to the race track,
to the Bilster Berg, I can perfom just like
with a car that was built only for this.
You always have to regard it as a sports car.
This means that it will never offer the comfort
of an AMG S 63 or E 63.
It just wasn't built for that.
This car was designed as a sports car,
but can absolutely also be driven in everyday life.
You have nearly finished your first lap, Johannes.
Congratulations!
Just stay right behind me, as you are doing,
this is perfect.
Now we can speed up again a little.
So, as you can see, if we go a little faster,
the car starts skidding a little.
That means that we have to accelerate and brake carefully.
Ok, come on, try to keep up!
That was absolutely extreme.
When I got out of the car, I thought "Wow! Awesome!"
I was glad that I could keep up with you to a certain degree.
Foggy glasses!
Yes, that looked great.
The helmet is also great,
most of all if you are a little chubbier at the moment
and the helmet squashes your face.
Then you really look your best.
But that doesn't matter at all.
You can't be vain here, because
this is all about this...
it is a piece of sports equipment.
I have really exercised here!
Because if you are sitting in this car, you really have to...
...it is a piece of sports equipment.
You have to use your brain power,
you have to use your brain all the time.
Nearly like a chess player. You have to read the road.
A professional driver has a lot of advantage
from reading the road.
Yes, absolutely!
As a professional race driver,
the driving happens automatically.
You don't even think about it anymore.
As you said, you read the road.
In a race, you also look at what you competitors are doing.
Good point! We didn't even have any competitors.
Right! You try to come up with strategies.
But for you, it is even more difficult.
Because for me, yesterday, the driving was a side issue.
I knew exactly what I had to do in such conditions.
You were steering with one hand, talking to me on the radio! It was awesome!
I had the time to give you advice
and to read the road in order to draw conclusions.
I could say „I have to do this and that here."
Driving more slowly, or with an offset from the line
in order to have optimal grip, optimal conditions.
Because I have free capacities for that.
But for you, as you said, it's high-performance sport.
You were just like „How do I drive?..."
„What am I supposed to do?..."
„Do I have the right steering wheel posture?"
All those things.
When you are approaching the corner, you brake.
While you are cornering more,
you should reduce the brake pressure.
Perfom a so-called „trail braking."
At the apex, you shouldn't be braking anymore.
So right here, your foot should be off the brake
and you should slowly accelerate.
And when the car is straight again, hit it hard!
Do you hear that?
Sounds great, doesn't it?
The AMG GT and GT S have the „normal" exhaust system.
But the GT R has the prominent exhaust in the middle.
Does that have anything to do with the performance, or...
...does it change the sound?
Both. On the one hand performance, due to the weight.
The exhaust system is made from titanium.
This saves 6 kg of weight.
And of course, it also changes the sound design, the sound composition.
This makes driving the GT R a special experience.
This is why this exhaust system is a triple-flow system.
This means that we have two exhaust pipes
on the left and right and one in the middle.
This is a special feature of the GT R.
I push a small button on the central console.
There is an exhaust pictured on it.
What happens technically?
Do the flaps open? How many are there?
You can see them very well here:
one flap on the left, one on the right.
They open then.
And then, the sound gets even more performant.
That means with closed flaps...
They are really closed?
Yes, they are just normal flaps.
We have a little more back pressure,
so the sound is muffled,
and if you push the little button, it goes "clack"
and they are open.
The most important button to me is the exhaust button.
Now it got a little louder. — Yes, exactly!
And the trick is, if you now put it into „race"...
You know what the great thing is?
How it pops! — Yes!
How it fires out of the back!
Incredible!
Awesome!
That is... I always say it's like an orchestra that is playing.
Yes, and you are Paganini.
You'll probably notice how we are stepping up our pace again, Johannes.
This makes driving a little bit more difficult.
We are edging more and more towards the limit.
But with each round, the tire temperature increases.
The tire pressure increases.
And this generates more grip,
because the tire interlocks itself with the road.
An thus, the AMG GT R can unfold its full potential
and work at the highest level.
We've got rear axle steering.
We know that this system gives us
more agility in lower speed ranges.
So much agility, that it couldn't be transported
into higher speed ranges.
That's where the rear axle steering begins to offer
added stability and control instead of more agility.
It is essential that we have agility
and stability at the two ends of the spectrum.
Do you feel that if you are sitting in the car?
That's a good point.
In general, we follow the strategy
that systems shouldn't impose themselves.
No system should tell the driver
„Look, now it's my turn!"
As far as it is possible, we only want to use the advantages of the systems.
In this case, the car feels
very agile in the lower speed range.
Because it is very agile.
Because the rear axle steers into the opposite direction of the front axle.
If have seen it explained by saying that
it virtually shortens or lengthens the wheelbase.
Right.
That's the physical equivalent of it.
Yes, that's right.
Because if you have a short wheelbase,
which is the case in lower speed ranges
with this rear axle steering,
the car is small and agile.
Like a go-kart. A go-kart is small and agile.
I believe everybody has been to a go-kart track.
And there you notice how small and agile that car is.
But somewhen, there comes the point
when we say that we don't need even more agility.
There, the systems slowly begins to reorient itself
and works into the same direction.
So there is a fluent transition between these two states?
Yes, there is even a speed range for this.
That is roughly around 100 km/h.
Around that range, the strategy begins to shift
towards more stability.
But in order to return to the original question:
No matter which systems is working,
the systems shouldn't push themselves to the fore,
they should only have their positive effect.
In this case, it is agility, stability,
also the feeling of much grip on the rear axle, for example.
How many degrees are we talking about?
1 or 1.5 degrees, is that right?
You are very well informed, Jan.
I have driven the car one or two times before.
The systems can achieve 1.5 degrees at the maximum
by changing the length of the track rod by a few millimeters.
This maximum of 1.5 degrees is usually only reached while parking the car.
Okay.
If we are driving at higher speeds, much smaller,
more subtle steer angles are enough,
which immediately lead
to more lateral force at the rear axle,
and that there is no overshooting of the rear axle,
as there would with a passive system.
So, Johannes, on with the show!
Next round! You'll probably notice that I am increasing the speed.
And you can still keep up, very good!
And you'll notice here that the car is skidding less in the corner.
Remember the first round, how it was skidding then,
now you can properly accelerate out of it!
If we go forwards a little, we can see a gigantic black carbon tunnel.
Yes, as you can see in writing here,
this is our carbon torque tube.
This is a feature that is solely reserved for the GT R.
As we have it here, the stiff connection
between the engine in the front and the transmission in the back
in carbon
can only be found in the GT R.
Does this torque tube affect the driving dynamics?
You as head of the driving dynamics team...
Does it change the rigidity of the car?
No, both versions are stiff.
It's about reducing the weight.
It reduces the weight by 10, 12 kg.
The GT R is lighter, anyway.
As the top sports car, it has to be lighter than the basic vehicles.
Here, we can save an important amount of weight.
Which again also improves the driving dynamics.
A lighter car helps my driving performance.
There are systems in the GT R
that aren't unique to it,
but which are important for it
in order to attain the desired driving dynamics.
Let's take a look at this!
We can see here the left front engine mount. — Okay.
There is the possibility to connect something to it.
Usually, there would be a cable attached to it.
There is a reason for it! — Yes!
By the way: in the front and in the back!
It's a controllable engine mount.
A so-called magnetorheological mount, an MR mount.
Depending on the power I apply,
the magnetorheological fluid hardens inside of the mount
and makes the mount stiffer. — Okay.
That means: if I'm driving very dynamically, very fast...
You know this as a race driver,
you don't want anything to be wobbling or rattling inside of the car.
That would hamper any precise steering correction. — Correct.
It has to be stiff.
Yes, we would otherwise say that the car feels „spongy".
Exactly.
And it would feel like that
if we tried to obtain maximum comfort.
For that, the mount would have to be soft.
We could just use a very rigid mount.
But the car is also driven on normal roads.
There are manhole covers and cobbled streets.
And then we have the possibility
to render this mount soft. — Okay.
This means we still have comfort
and when you need to drive dynamically, it notices
and automatically stiffens.
So it's also a clever systems that works automatically.
Yes, we have made a clever system clever!
Perfect!
So, then we'll drive back into the pit lane
and see if Johannes is still feeling well.
I still have a small surprise for him.
Are you alright?
It's totally awesome!
I couldn't understand you sometimes,
but it was still awesome!
It really is like a rollercoaster,
you feel it in your stomach.
You probably saw me swinging off.
Yes, as I said before:
you could see that you've been getting closer and closer
to the limit.
Just as it should be.
And of course does the car swing off from time to time.
We've got very difficult conditions.
But you can also see how... yes, it's especially difficult for you!
But you can also see
that the car gives you a feeling of safety,
so you can get closer to the limit.
Let's take a look here.
Oh, the tires are even slightly cold yet.
They haven't quite reached the right temperature,
but it still worked well.
Most of all, it is very well balanced.
I mean I am a layperson, I don't know the track,
but it is so neutral.
It is so easy to steer it! It's like a computer game.
Yeah, right.
But if you want... I had it in „sport plus" now...
but if you want „race" mode...
which is not advisable if you are a newbie...
then it's probably like an animal and is constantly driving sideways.
Yes, it goes sideways, although...
„race" mode and „S+" are relatively close together.
There are a few subtleties
that are there for the race track.
But if you completely switch off ESP
and then switch on the traction control,
then it's something entirely different.
You have to show me that! We'll do a „taxi drive"!
I'll get „shotgun" into the car with you...
Now he takes away my surprise!
I was just about to say
„Come, may I show that to you?"
That would be awesome!
I'm excited!
But I'll have to drink some water before that...
Thank you very much! — You're welcome!
Look! This can almost be done with one hand!
That's where you actually need traction control
especially in this weather
Speaking of wet tarmac:
I've later followed „Mister DTM" onto the race track...
drove through a puddle...
the car swung off...
and I almost saw me crashing into the guardrails!
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