Premium package adds 6-disc in-dash CD player, power rear door and sunroof, and auto leveling and adaptive high intensity discharge headlamps to the base package, while the ultra premium package adds Mark Levinson audio, rear DVD entertainment system and navigation system. On take-off, the vehicle is powered exclusively by electrical energy. The engine cuts in seamlessly when more power is required to accelerate. On deceleration or at rest, the engine will shut off *remember all listed vehicle prices subject to applicable provincial and government taxes,as well as licensing and registration costs