Lamborghini gives us one last glimpse at the one-of-a-kind Aventador J

Jaws dropped last month in Geneva when Lamborghini took the wraps off the Aventador J. Looking like the bastard love-child of an Aventador coupe and a KTM X-Bow, the Aventador J packed the same 700-horsepower V12 into a visceral roadster body.

The fleeting beauty and startling reality of it, …