Lamborghini has just released official imagery and details of its next masterpiece, the Reventon Roadster, ahead of its oficial debut at the Frankfurt Motor Show. Like its hardtop predecessor, the Roadster features stealth fighter styling seemingly intended to scatter the radar beams of the local constabulary as you peal off your toupee. The 661-horsepower 6.5-liter V12 is also carried over from the coupe, which is enough to make the 62 mph sprint...