The V12 Vantage Roadster will have the same 6,0 liter engine as the coupe, delivering some 510 bhp (380 kW / 517 PS) with 570 Nm (420 lb ft) of torque. Due to the extra weight required to stiffen up the chassis, the performance of the Roadster will be slightly stunted compared to the coupe. However, the V12 Vantage Roadster will still be one of the fastest convertibles on the market.
While the V12 Vantage coupe is limited to 1000 units. Rumors already suggest that the roadster will be limited to 500 units.
Source: Worldcarfans