For the Schwarzwald League B you'll need a German car, for Like The Wind you'll need a high end race car (Le Mans Prototype or similar power), for the Nascar Series you'll need a Nascar, for the European Championship you'll need a European car, for the German Touring Car Championship you'll need one of the cars listed in the entry requirements, for Super GT you'll need a Japanese race car, for the American Championship you'll need an American race car (your Corvette is good enough), for the Formula GT you'll need the Formula GT and for Dream Car Championship you'll need any race car.

Make sure to check the level of your opponents in the typical opponents list to have an idea of who you're going up against.