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Comment on aerodynamic components on road sports cars

Aero components on street sports cars
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We don't really have to discuss the rear wing or the front splitter in our circles . Sports car drivers know their function: In racing, for example, the rear wing is supposed to generate downforce, in roadworthy sports cars it is usually supposed to reduce lift, because its interaction with the rear diffuser is usually so limited due to the vehicle standing height that is standardized in road traffic that their interaction Proper downforce seldom comes out.

Outside of our circles, these aero tools have a rather dubious reputation, as we all know. The more bombastic the rear wing, the higher the eyebrows of the ignorant observer, because rarely such solutions are neither beautiful nor are they considered aesthetically valuable.

At Ferrari, aero performance is part of the design

In racing, every aero application can be reduced to a simple question: How much downforce do I gain with how much air resistance? The less drag you pay for downforce, the better. In road traffic, things like gasoline consumption also play a role - and aesthetic questions.

And that's my point: It's always fascinating and at the same time terrifying what automakers do with this topic when implementing it in road sports cars. The case of Ferrari, for example, is fascinating: the Italians pursue a fine approach through their Formula 1 commitment and their high-quality wind tunnels, and they are also aesthetes. They do not force aero balance or lift reduction through nasty beer counters that are screwed to the rear - aero performance is part of the design.

Ferrari therefore works with hidden and invisible flap systems and complex air flow to provide downforce and cooling to ensure certain speeds. The look of the car is not spoiled. McLaren did a similar thing with the 570 S. That means: It works.

Questionable rear spoiler on Boxster and Cayman

The competition does not always serve up a feast for technology freaks and aesthetes. When I see that Porsche has been using the Boxster and Cayman for a long time at certain speeds at certain speeds - let's call it a friendly one - aerospace-like aid in the rear area to eliminate negative lift, the hair on the back of my neck pops up. The thing looks like a balsa board that students have carved at home.

Neither has it a profile, nor does it have style, and the fact that you can get it up to 80 or 100 km /h (depending on Manufacturer) hidden says yesactually everything. The reason for the less aesthetic solutions are the rounded rear sections of modern cars, around which the airstream flows in such a way that the rear section is lifted at higher speeds via the so-called Bernoulli effect, because the air behind the round rear swirls downwards and right there also rises again.

All just show?

Only: If Ferrari can do it, you could expect others to do it too, right? Especially: other sports car manufacturers. The application of output elements in non-output cars is generally disturbingly ridiculous. With a high-performance GT3 911 you can certainly accept that, but why compact athletes are given a triple row of side front flaps has no logic or justification. So it's all just a show?

In many cases, unfortunately, yes. The homologation cars for rally or GT sports are excluded here in principle - although the ironing board on the Subaru WRX STI no longer has anything to do with homologation. So should we discuss the rear spoiler again in our circles?


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