I know that the Thread title says "vehicle", but a quick shout for K-9 (german shepherd).
You'd be pretty hard pressed on a practical level to beat one of
Suzuki Swift (alternity bee/cliff)
Honda Civic (alternators rumble)
Honda Accord (alternators prowl)
Subaru WRX (alternators streak) (hell, I f***ing drive one of these, though 15 years younger than the one used in alternators)