The thing is, with the DFGT, in other games (at least on Shift), if you set the rotation to 360º or 270º etc., there are mechanical stops which engage in your DFGT and you CAN'T turn past the rotation amount set.
But GT5 has go-karts and F1 cars set to lower rotation, but the wheel will still move the full 900º travel, so after the 270º or 360º or whatever PD has set those cars' rotations to, you keep turning the wheel and nothing more happens...
It's a small but important detail. To be honest, yes, most street cars are set to 900º or thereabouts, but once you have modded your street car to be a racer, most tuners will also shorten the ratio on the steering rack for a more 'racer' rotation amount.
I wish this would be implemented in GT5. Lower wheel rotation helps a lot in doing quick opposite lock flicks to catch oversteer, but with a full 900º wheel, it takes a lot more movement and speed compared to a 360º setting, IMO. It just seems like one more area of customization and tuning that has been left out of the 'Ultimate Driving Simulator'... Heck, I can't even change my tire pressures or individual gear ratios, let alone tune the steering rack!

