Driving the XFG in the Race 1 server for a good few weeks, I've learned so much about driving fast. The key is to be as smooth as possible, and get on the gas and the traction down as soon as you can. It also doesn't hurt to have a good gear setup (which I'm still working on. I take pride in making my own setups. ).
I have also driven the UFR and must say I love it. Maybe I'm partial to fwd platforms, but I absolutely love speeding to the corner, turning in early while lifting the throttle, then floor it and just steer your way out with the rear end sliding out and pointing you to the exit. It's very rewarding to me. I'll be in the UF-BR server as soon as I get my requirements.
I bought my friends Driving Force from the GT3 days when we were hoping GT4 came out in the next 3 years for 20 us dollars. Been working ever since, not a problem. Works great for me with LFS.
Just unlocked S2 last night, and love the autocrossing. I plan to compete in real autocross events this whole summer. I did a couple last year, but it was at the end of the year so I didn't get much for experience.