When the game wasn't crashing with errors I wasn't able to enable vsync to reduce tearing, or even change the graphics quality. There's also no option to disable mouse smoothing, which makes things very difficult at low sensitivities. The Steam and Bethesda forums have been inundated with complaints about graphical issues such as texture popping, while readers of GU have had to roll-back Catalyst drivers just to get the game to run.
A post at Bethesda's blog says that most if not all issues "can be attributed to driver issues," which id Software is "currently working with Nvidia and AMD to resolve [...] as quickly as possible." Performance aside, it's disappointing and disheartening to see such little consideration for the PC platform from the pioneers of the first-person-shooter.
Source: Playing RAGE on PC? [Bethesda Blog]
PS: I have a monster PC rig, I too was amazed at how the auto-balancer has decided to mistake my rig for an atari 2600