In those garages, they have teams of people working together getting the job done.
All the car shows do this. I give the guys credit for having the knowledge and getting junk working from nothing.Lets do some shit on a car and set an arbitrarily short deadline for ourselves for no real reason. DRAMA!!!
Regarding the car stuff, I'd want the latest electronics or toys built in (sat radio, back up camera, front and rear dash camera, navigation, steering wheel controls).