Porsche just published "Porsche Unseen," a book that showcases design studies and never-before-seen concept cars from 2005 to 2019. The release unveils a few spectacular designs, including the 919 Street, a road-legal version of the incredible 919 Hybrid race car. But apparently the 919 Street wasn't Porsche only idea for a streetable hypercar. Porsche also envisioned the Vision 920, a Le Mans racer for the road, also described as its "most extreme vision of a super sports car."

Just like the 919 Street, the Vision 920 is also based on the 919 Hybrid race car. But it looks significantly different. The big headlamps were replaced by vertical LED bars, while the layout of the bumper looks a bit like the iconic Porsche 935 thanks to its big and almost square side intakes.

Similarities to the Le Mans car continue toward the back through heavily sculpted side skirts and bloated rear wheel arches, but the Vision 920 is missing the central fin and the big rear wing. Still, the rear end is pretty aggressive that's to the two-tier diffuser, the vertical scoops onto the sides, and the open central section that reveals elements of the drivetrain.

A 1:1 scale model created in 2019, the Vision 920 looks sleeker than any other production hypercar out there. Too bad Porsche didn't actually put it into production.

Being a concept, there's no powertrain to talk about, but I'm pretty sure Porsche would find a way to cram the 919 Hybrid's drivetrain under the rear hood. The race car pairs a 2.0-liter, turbocharged V-4 gasoline engine and a generator that operated as an electric motor to run the front wheels.

With both systems engaged, the 919 Hybrid generated an impressive 1,000 horsepower. Now imagine a road-legal car with that kind of power and the heritage of a race car that won the 24 Hours of Le Mans three times. That's what dreams are made of!