The convertible model of BMW 6 Series comes in two gasoline-driven variants. The 630i variant of the convertible is powered by 2996 cc 6-cylinder engine, delivering an output of 190 kW @ 6600 rpm and a maximum torque of 300 Nm @ 2500-4000 rpm.
On the other hand, the 650i variant is powered by 4799 cc 8-cylinder engine, which churns out a power of 270 kW @ 6300 rpm and torque of 490 Nm @ 3400 rpm.