In GTR2 or other Sims with similar cars in a class it´s easy to race against each other with different cars and no one has a big handicap with his car. In Assetto Corsa there are so many different cars and classes that it could be difficult to find some different cars for a race that nearly match with their power, weight and other specs. As an example we have a Ferrari 458 GT2 and a McLaren MP4-12C GT3, why not a GT3 of both? =( ... good that there is a BMW Z4 GT3. With all the street cars it is much more complicated to organize some fair races or a championship. I hope that does not result in every one driving the same car because it´s the best.