Winding out a convertible to 217 mph, we'd imagine, is like flying a Gulfstream V with T-tops. Of course, though the tuning boys at 9ff made such a feat possible, they did it with the top up, mitigating the need for an O2 mask. That means next to a Hemi-powered plain-jane Dodge Charger cop car, the company's all-wheel tuner 911 cabrio is the ultimate sleeper. They make it so by upclocking the factory model to reach 650 hp and boosting the brakes (gee, thanks).
More at World Car Fans
The Cayman Porsche Should Have Built [internal]