Speaking of pipe dreams...

Really it deserves its own game.  Gran Turismo just isn't equipped to deal with the typical problems that occur during a typical Lemons race, let alone the way the problems get fixed.

i don't think it'd wouldn't work too well.  the cars in GT don't get damaged.  our cars come pre-damaged. also there would be no chance of a heroic fix award when the rods would normally start flying out of the engines

It seems like it would really need to be its own.  You would need mini games for race prep (fix, paint and theme creation), a minigame to get past bs inspection, a number of minigames for punishments, and the repair minigames.  figure about an hour of racing and 3 hours of the rest.