I bought this game and just installed it today. Pretty deep and impressive 4x4 game for $30. Very much like Screamer4x4 only tons better. Although, wish I would of seen that #2 is coming out soon, would of bought that instead but I digress. Edit: After more research #2 is out currently but only in Russian, took over a year before English version came out. <sigh>
Lots of very diverse terrain. Physics are very pretty well but not perfect. I don't think game would be fun if physics were 100%. The terrain would have to be much more boring.
You do really get a sense of good or bad traction and how tough your vehicle is working over the terrain. Excellent graphics, Chrome Engine is still very nice but hits the frame rate hard too.