I completely agree with you Zeos. There is a lot of work to be done on vehicle physics. Although the grass is something you rarely see in an aircraft, trees collisions would make it a more interesting driving experience. I'm working on a new watercraft, which are actually a vehicles using watercraft physics, and it is very straight forward and works well. However there isn't anything any of us can do to make the vehicle physics better ahead of OT, so for racing speeds, you might still end up getting bounced into orbit. Once vehicle physics are worked out I will develop some vehicles for OT. For now, aircraft are the most advanced, and my primary interest.
Regards,
Uriah