A heavily modified Porsche 356 coupe with a separate rear passenger cabin is being offered through a Bring a Trailer auction. Built in 2001, the unusually long custom car combines two 356 chassis and places its engine far behind the front seats.

The project was commissioned by Porsche collector John Dixon for his daughter’s wedding and carried out by custom car builder Don “The Egyptian” Boeke. The build reportedly started with a 1953 Porsche 356 coupe and the chassis of another 356.

A dramatically extended 356

The listing does not provide an exact overall length. For context, a standard Porsche 356 measured 152 inches from front to rear, while this stretched example appears to be nearly twice as long.

Its body retains a largely original appearance ahead of the A-pillar and behind the D-pillar. The extensive changes occupy the section between them, where the roof, doors, chassis and passenger compartment were reworked.

The original front doors were modified to suit the flatter roofline. Two custom rear-hinged doors provide access to the rear section, giving the coupe a four-door layout that Porsche did not offer on the production 356.

A separate rear passenger compartment

A glass partition divides the rear cabin from the front of the car. The compartment includes Venetian-style blinds, foot rests and wood interior trim with built-in recesses for champagne flutes. A thermometer displays both interior and exterior temperatures, while a fabric sunroof provides an additional opening above the cabin.

Despite the car’s length, the rear compartment contains a single bench seat. The layout and equipment reflect the car’s original purpose as a custom wedding-related project rather than a factory-developed Porsche model.

Rear-mounted flat-four power

The engine and four-speed manual transmission are positioned at the back of the extended body. The engine is reportedly sourced from a later Porsche 912, although the auction listing does not specify its displacement. The source notes that late-1960s 912 engines produced around 90 horsepower.

This engine has reportedly been rebuilt with a hotter camshaft, upgraded pistons and new carburetors. Drum brakes remain fitted at all four corners.

Porsche never produced a four-door 356 for series production. The company did build a four-door Type 542 prototype for Studebaker in the early 1950s, while a coachbuilt four-door 928 was presented to Ferry Porsche in 1984. Porsche’s first production model with rear doors arrived later with the Panamera, launched in 2009.

The stretched 356 is now listed for auction on Bring a Trailer.