I've just reinstalled GP4 and I've tried both that and GTR2 demo with a PS2 pad and you're right, they're far better (and less tiring) than the joystick. Maybe a don't need a wheel after all, but I might still get one because I like the idea of using a wheel for racing games.
I don't know if there are any of you out there still playing GP4, if so can you help me with something? The game keeps either freezing up or CTD. This didn't happen with my old specs, so I'm guessing that it is having issues with the dual core CPU or, more likely, the GPU. I've installed the patch, but no luck. Does anyone know if there is a fix for this, I really want to play GP4, I'd forgotten what a blast it is! GTR2 is a great game, but the cars feel pedestrian compared to F1. I just don't get why someone hasn't released an F1 game, especially with the resurgence in British interest due to Lewis Hamilton. Simbin should nab the licence, I reckon their attempt at an F1 game could top even Geoff Crammond!