I'll post my 360 pad settings soon. Gotta turn a bunch of sensitivity settings way down. I'm still struggling with under steer on certain tracks but setting front tire pressure lower and a little more extreme front negative camber seems to help. Front end aero with a bias to cornering as well as brake bias pushed to the rear helps turn in as well.
I'm typically finding I can push hard and be close to the pace of the faster people in online sessions. As far as career is concerned I can typically beat the AI set at 80 but it's a close hard fought race. At 90 I can't even stay in touch with them. I can if I push like crazy but I tend to wreck after a couple laps.
I use ABS, TC, and manual gears. No racing line. That's for scrubs. Haha.
I went and bought a physical copy since it was considerably cheaper, whilst waiting for the refund on steam. I also just said fuck it and went ahead and got a steering wheel, because my hands start to hurt after prolonged use of the controller and I got sick of the fiddly, jittery steering. All in the name of imersion BITCH! Didn't get an expensive one, got one that was considered a great choice for a starter around 90 euros/dollars.