PSN Game Demo: Ridge Racer 7

I have recently seen some new content on the PSN here in Australia, including some game demos. I have downloaded both "Ridge Racer 7" and "Resistance: Fall of Man". After playing Ridge Racer for a little while I am very glad I didn't waste my money on the full version.... while the graphics are ok (nothing to get excited about), the game play seems choppy and slightly strange. When you go around corners and hit the walls with your car, for some reason the graphics "jump". Also with collisions with other cars, it appears as if they don't actually touch each other, yet the other cars pushes mine. Quite frankly it looks as if they bought a graphics engine that works but haven't used the correct models, textures, physics engine... Bottom line, IMO don't buy this game.

As for the other game mentioned, I am still downloading this and will offer my opinion later in another entry.