#1 were ok, I got second in all of those comfortably and with more effort could have attempted golding them
#2 didn't like the NASCAR challenge, first lap was good and then only managed to pass 1 car for 7th on the second lap (despite starting the lap in 7th.....) but the mini challenge was harder I think, car AT the limitations and yet I was still never close to fast enough. 5 consistent laps on what I believed to be close to the limit for 5th....
#3, meh.... I tried them COMPLETELY stock and struggled, then limited myself to a tyre change. Golded them all, glad for the experience and glad that it is structured this way, but its difficult to get a balance between "near impossible" and "easy"
#4 look forward to trying them completely stock again, though they sound even easier.