A great basis for a What-If Car - well, it's knd of a Whif now!

[Dizzyfugu]

A prototype, built in 1987 after a similar one-off conversion called "942", which was handed over three years earlier to Ferry Porsche as a present at his 75th birthday. It had a second (rather narrow) set of  suicide doors (like the later Mazda RX-8). It did not win any favor, though, but the concept re-surfaced 20 years later witn the Panamera.

There was also a 911 four-door prototype, looking as odd as the Corvette 4 door variant:

[jcf]

I'm not at all sure the C4 Corvette was the first use of composite leaf springs in the automotive field

It may have been the first use of them in a production car, but GKN were working on them in the late 70s. MTS, my employers, sold GKN a hefty test rig to test composite leaf springs and I installed it in mid-'79. They also tested and supplied the composite prop shaft for the 4x4 Renault Espace in the same period, and the leaf springs were intended for a British Army vehicle of some sort IIRC.

Introduced it on the Corvette.