The GS 450h's hybrid powertrain shares its engine with the IS 350 sedan, a 3.5-liter V6 capable of yielding 292 horsepower. This engine, combined with two electric motors, brings the GS 450h's total horsepower to 340. Standard features include automatic climate control, power moonroof, parking assist with rear camera, adaptive variable suspension, adaptive front lighting system, SmartAccess keyless entry, Bluetooth wireless connnectivity, genuine wood trim and a premium 6-disc audio system. The GS 450h features Lexus' Vehicle Dynamics Integrated Management system, which combines various coordinated electronic safety features such as an electronic stability system, electronic steering and electronic brakes. Other standard safety features include anti-lock brakes, and front knee, side-impact and side curtain airbags. Options include a Mark Levinson sound system with navigation, power active stabilizer and a pre-collision system with dynamic radar cruise control.The Lexus GS 450h receives an increase in trunk capacity of more than 40 percent, yielding 10.6 cu. ft. of space.