Not just an involved process. At least for F1 there are ONLY external starters. And keep in mind, when the engines are cold, they are seized. The blocks have to be warmed prior to starting for there even to be room for the pistons to move.

They all do from time to time, but it's for humors/humours.

Pretty sure it'd still be horsepower.

Looks about the space between bollards in front of some stores (i.e. wal-mart).