ii 4.3 liters 262 cubic inches four cam four valves per cylinder with continuously variable valve timing with intelligence vvt-i 10.5:1 288 hp 5,600 rpm 317 lb- .. 53.8/46.6 in 1,366/1,182 mm front/rear drivetrain transmission six-speed sequential-shift automatic .. electronically controlled transmission with intelligence ect-i rear with standard