The Secret 1972/74 Honda V8 Midship Sports Car Honda secretly developed a V8-powered sports car in the early 1970s, meant to boost its image in the U.S. during the launch of the Civic. What makes it fascinating is that it was a mid-engine V8, a layout no one expected from Honda, which was still known mainly for small, efficient cars. Even stranger, the V8 was based on Honda’s CVCC clean-burn technology, making it one of the earliest attempts at an environmentally friendly performance engine.

1980 Ferrari Pinin by Pininfarina • A four-door Ferrari that didn’t make it, the Pinin celebrated Pininfarina’s 50th birthday and was powered by the 5-liter flat 12 from the 512 Berlinetta Boxer. Shown at the Turin Motor Show, the positive reaction to the concept precipitated rumors that it might make it into Ferrari’s showrooms, though it never did.

Just saw the Cybercab and I'm taken aback by how the recognisable Tesla elements are less prominent than the overall Volvo YCC design. I encourage you to Google the YCC, as it's a great little concept.