Do they still have a rule that you must sell at least 50 to the general public before you can race at Lemans?
Not sure for this class (GT3). There are two prototype classes that usually have no road-going examples. The racing versions of production cars are no longer very similar except for basic appearance. The chassis and bodywork are often carbon fiber, custom suspension and braking. Surprisingly, the engine output is often restricted below the HP of the road cars in this racing series.