Can you guess what gorgeous, iconic supercar this chassis belongs to?

This is an Important Car. Scratch that, it's an Important Super Car. It was wheeled out for a motor show back in the 1960s not as a statement of ‘crap, we ran out of time, here you go’, but more as a statement of intent.

It was made of folded sheet metal that was lightened by “numerous drill openings”, according to its makers. Peak Sixties lightweighting, that. Peak Sixties power came courtesy of a 4.0-litre V12 – look at those shiny intake carbs! – mounted right on the back.

So, according to its maker, it “looks like a racing prototype”. Hint: it’s really not. Though the three bright young minds behind this rolling chassis knew the boss didn’t want to go racing, so they’d instead bring racing to the road.

You getting warmer yet? Here are a few more hints. It was called Project L105, which in turn manifested into the ‘P400’ chassis. The structure was built by Marchesi of Modena, made from 0.8mm steel sheet. The central tub and subframes and all the core bits weighed no more than 120kg.

Apparently, the carmaker responsible for this Important Super Car attracted the attention of a number of coachbuilders, but only one stepped forward to provide ‘the perfect shoe for this wonderful foot’. Or something along those lines.

And those lines were sketched out over Christmas and presented to the boss… and immediately approved.

You got it yet? That’s right! Envisioned and engineered by Giampaolo Dallara, Paolo Stanzani and driver Bob Wallace, designed by Bertone and presented at the 1966 Geneva Motor Show, this P400 chassis would of course become…

… the Lamborghini Miura! It’s sixty years old next year, and Lamborghini is planning a “full year of celebrations” for it. Because while everything that needs to be said about the Miura has already been said, it remains an Important Super Car.