-faithful reproduction of the car, including its scale
-faithful low poly far file
-perfectly matched collision file
-simulated driving, realistic performance
For a improve car crash and tires physics on different surfaces the surface.dat file with this data:
Rubber 6.0
Hard 3.6 2.6
Road 4.5 24.5 6.0
Loose 2.7 4.7 2.0 0.9
Sand 2.1 4.6 2.0 0.9 0.8
Wet 1.6 2.6 0.7 0.7 0.7 0.4