The EVOII is a rare beast, only 502 of them were build by Mercedes-Benz. The EVOII bodykit might look outrageous, but every piece is there for a specific purpose: to add extra downforce. The swelling arches, extended bumber,  valances, the rear window spoiler and blocked out grille are NOT for the show, they are there to cutting drag and gluing the EVOII on the road.

The wheel arches of the EVOII are very large so it means that there is space for 19" rims - General stiffening and lightening meant that the EVOII body components underwent significant changes. Although the EVOII might look like a standard 2.5-16 with a bodykit, it is not: the wing, wheelarches, front + rear bulkheads, shock towers, C-pillars and spare wheel were all unique to the EVO models. Not to mention that all the other differences: engine, gearbox, exhaust, suspensions, rims and so on...

The rear wing and front splitter can be extended depending on how much downforce is needed. By simply changing the angle of the rear wing, you can go from oversteering to understeering!
Shortly after the Geneva Motor Show, Jurgen Hubber, member of the manegerial borad in chagre of the Passenger Car & Motorsport Division was asked with the 190E EVOII looked so outrageous. He conceded that the look of the EVOII was in fact unusa for a MB and explained that it looks was stricly a matter of function. All the 500 EVOII  built were sold before it was first unveiled. They were actually all sold before they were built.

Professor Hubber explained that the EVOII design was primarly the result of highly sophisticated research on the aerodynamic applied to racing cars. The priority was not least air resistance but turning thecar's handling to diferent tracks it would compete on.

WIND TUNNEL DESIGN:

The front spoiler & splitter contributes dramatically to the EVOII performance and handling. The air dam designed under the bumper has 3 major functions;

1. Reducing airflow under the car.
2. Delivering increased downforce
3. Taking fresh air to cool the engine

The front splitter can be manually puller forward, it is very efficient in providing negative lift pressur on the front axle. The fenders were designed by the wind tunnel to meet the desired drag coefficient.

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The front splitter, the huge rear wing and the window deflector were designed by the wind tunnel to dramatically increase downforce but also to reduce lift as much as possible. Therefore, the 190E EVOII has an impressive aerodynamic  coeff. value even with the 245/40/17 tires. The number is .30 which is lower than the stock 2.5-16 by .2 !
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