Lamborghini today announced the latest showcase of the carbon-fiber materials research it's doing with the University of Washington.

Called the Aventador J, it's a one-off concept car appearing at the Geneva Motor Show before it will be sold to one rich and lucky enthusiast. (Update: A source of mine heard that a buyer's already stepped forward with around $2.1 million ...)

The car combines the latest carbon composite materials with an open-roofed, retro design that to me echoes the classic Italian road racers of the 1950s and the Mach 5 of "Speed Racer." Instead of a windshield, it has two small wind "deflectors" that the company compares to those on a superbike.

It's based on the V-12 Aventador LP 700-4 that was the first vehicle developed start-to-finish through collaboration with the UW Lamborghini lab. The company's interest in advancing carbon technology for the Aventador is a big reason the lab was established in 2009.

The Aventador J has a new monocoque and seats made of forged composites, a technique devoloped with the lab's founder, Paolo Feraboli, a UW professor who also worked with Boeing on the carbon technology in the 787.

Carbon pieces are all over the Aventador J, which also uses a new carbon fiber fabric called "Carbonskin" that's made of woven carbon fibers soaked with epoxy resin. It coats the cockpit and is used in seat inserts. Lamborghini's release said other products may use this newly patented material, incuding high-end clothing.

Other carbon pieces include the large rear diffuser, a new X-shaped engine cover and fins on the bumpers "that act as flow deviators."

Here are a few images: