You've seen the Lamborghini Aventador J one-off hyper-roadster live from Geneva. You've seen the "making of" video. You've even seen its hardtop cousin on fire. But now you can get a whole new look at the J and its tunnel-running prowess.

This Lamborghini Aventador J video is one of the best close-up looks at the car outside of our own photo gallery, with the added bonus of a high-revving soundtrack and some brutally fast (possibly sped-up) footage of the Aventador J tearing up a curvy mountain road.

Impractical, incredibly expensive, and not for sale at any rate. Yep, we still want it.