I agree with Cue-Ball, I'm also no hotlapper, still I use the mode to test setups. And I'd also like to see the cars starting from the pits.
So why not using single-player mode?
Plain and simply, don't you ever drove a lap that was so fantastic in single player mode, that you whiched you could upload it?
I sometimes have and if I try to reproduce it, it doesn't work anymore.
That's why I practice in hotlap mode, to be able to upload an hotlap if by any chance I produce a fast one.