The tuning specialists over at 9ff took an "ordinary" 911 turbo cabrio and kicked up the power into the 910 HP stratosphere. Since the standard 911 turbo can hit 60 MPH in under four seconds, we can't imagine what would happen if you doubled the grunt on a car that weighs only 3,200 lbs. Since 60 will come and go well before you kick it into second gear, perhaps top speed is most relevant here, and achieving speeds that pass 240 MPH has already been done by 9ff while using only 850 HP. 9ff has already done a coupe and Carerra GT versions with identical power numbers, so the drop-top was easy.
At some point we fully expect the horsepower war to taper off, but you won't hear us calling for a truce. We hope this monster comes with a standard helmet and a four-point safety harness.
[Source: Motor Authority]