rFactor has some proper drift mods, but you definitely need a wheel and be damn good and fast with it as it is hard to do: http://onlinedrifting.com/rfactor/drift-mods
http://youtu.be/xZBq0ROvzkA
real warning for this mod though, it takes real skill, as in real life skill to drift this car
Sims don't really work well with pads, you need a wheel to extract the fidelity on offer.Tried it with xbox 360 controller + special config downloaded from rfactor forums and drift modes. Lots of spins out, the car is very unpredictible...
well when the title says racing/simulation, I assumed he was after something more serious than arcade racers, but maybe not considering he is on a pad. But i can't recommend any as i don't play arcade racers.