The standard features of the Rolls-Royce Phantom Drophead Coupe Base include 6.8L V-12 453HP engine, 6-speed automatic transmission with overdrive, 4-wheel anti-lock brakes (ABS), navigation system, side seat mounted airbags, driver and passenger side airbag head extension, airbag occupancy sensor, automatic, 21" alloy wheels, cruise control, and an ABS and driveline traction control.