Yeah! Yeah, the, uh. It's an internal combustion engine - so you put gasoline in, and it burns it, and that makes a bunch of little controlled explosions. Then the energy from that moves the pistons up and down, and they spin the crankshaft. That's what, uh, makes the wheels turn.

[Sudden realization that he's nerding out! Oh no!]

Not that that, uh, helps now. [.....] Wait, you do magic?