The Mercedes-Benz SLS AMG GT3 is a version of the SLS complying with GT3 racing regulations, and as such varies little from the production car on which it is based. It retains the 6.2-liter AMG V-8, but gets extra cooling vents for engine and wheels.
The SLS AMG GT3 sits lower than the production SLS AMG and gets a wider wheel base. It uses AMG racing brakes, but ceramic brakes are not available because they don't fit on the 18-inch wheels required by GT3 regulations.
An adjustable rear wing helps the SLS AMG GT3 keep grip at high speeds on the race track, and a rear diffuser funnels air from under the car. Because the SLS AMG GT3 is lighter than the production SLS AMG, it gets to 60 mph in 3.7 seconds.