This is the one of one, Aventador J.  It’s not a concept.  It’s a road legal, open top roadster that you can buy (if it hasn’t already been sold).  Lamborghini says that this car was designed to deliver the “pilot and co-pilot an utterly indescribable experience of power and dynamics.”  By the looks of it, it can.

The “J” comes from “Appendix J“,  which defines the technical specification of race cars in the various classes,  in the FIA world motorsport organization rule book.

Built around a carbon monocoque, similar to the one found in the series Aventador LP700-4, the “J” undergoes a dramatic weight loss in the absence of a roof, windshield, air conditioning, navigation system and radio.  If even one of these elements were to be added in, Lamborghini says the car would lose its entire “raison d’être.”  Combining the same 700hp, 6.5 litre V12 as the LP700-4 with the lower weight savings translates to an even more exhilarating experience. That and the fact that you’d need a good pair of goggles, a decent set a driving gloves and probably a thick blanket to survive a run at 300km/h.

The car stands 1110mm tall which is roughly 43 inches.

The massive rear spoiler is directly linked to the rear diffuser.  Quad tail pipes and Y shaped tail lights – a Lambo signature.

21-inch, 5 spoke aluminum, rear wheels (20s up front) with carbon fibre inserts. They say the inserts act like a fan to help cool the brakes. I believe them.

The front winglets, like the ones found in the rear, are a thing a beauty.

Central mounted rear view mirror. Low tech, high style.