I've mainly been grinding the Dream Car Championship with my X2010. I say 'I', I mean Bob has, with minimal input. I'm considering going to the effort of working out how I can make something press X a few times, down then X (to get past the screen which shows you Bob's progress after the race), then right twice and X after about an hour and a half (roughly how long it takes if it doesn't rain/you set the right tyres before the race). At this point, all I do is work with GT5 in the background so I know when to pick up my controller to tell it to do the next race... Except for the seasonals, I can't remember the last time I actually raced.
And to think, I used to be militant about the exploits!
As for actual endurance races, I give Bob the X2010 every time. When/if I get round to doing the A-Spec ones, I'll probably use something fast enough to not need to worry about wasting several hours of my life, but I'm not sure I'd use the X2010. Maybe on the fixed-length races, though, but for the timed ones it won't make any difference. It's difficult to drive for extended periods, though, you can't concentrate that hard for that long.
