A strange one-off Pininfarina Ferrari concept - the 1980 Pinin saloon - is going under the hammer in Battersea at an RM Auctions sale on 26 October.
This drawn-with-a-ruler automotive curio was originally built to celebrate the 50th anniversary of the Italian styling house (and given Pininfarina's reputation as creators of extraordinarily beautiful vehicles, we must assume that the design team were hungover from the 50th anniversary ceebrations when they created this) and was a mere rolling shell.
Eventually, however, the car was given a 5.0-litre V12 with 360hp, but never a green light for series production.
To this day, and perhaps put off by Aston Martin's troubles with its forever-controversial Lagonda, Ferrari has yet to produce its own four-door. Though the success of the Panamera, and the arrival of the Aston Martin Rapide (not to mention the possible creation of the Lamborghini Estoque) might always cause Ferrari to change its mind and add more to the ranks of history's weirder four-doors... (See below for our own selection, but we're sure there are others that you may wish to post.)
 DeTomaso Deauville
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 ISO Fidia
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 Lagonda Virage (1980s)
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 Porsche '989'
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 Aston Martin Lagonda
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 Monteverdi 375/4
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