|Body and chassis|
|Body style||Single-seater (Monoposto)|
|Engine||American 42 l (2,563.00 cu in) Packard V-12 Marine Engine|
|Curb weight||2.4 Tons|
The Packard-Bentley Mavis is a one-off racing car. It is powered by a 42 L (2,600 cu in) Packard 4M-2500 V-12, developing 1,500 bhp (1,100 kW) and (2,000 ft⋅lb (2,700 N⋅m)) of torque, sourced from an American World War II-era marine military PT boat.
The Packard-Bentley is based on a 1930 Bentley 8-litre chassis, highly modified. The car also has 24 exhaust pipes, reflecting its engine's twin-port design. The steering column is offset and angled to allow it to clear the huge engine block.
The car is a very popular spectator attraction, both static and while being driven. As of 2019, it is now housed in Technik Museum Speyer, Germany, where it has previously featured in their "Brazzeltag" convention.