The double overhead-cam, 32-valve, 4.3-litre V8 meets all forthcoming EURO IV standards with no change in its components. It develops 279bhp at 5,600rpm and 417Nm of torque at 3,400rpm and is combined with the all-new Super ECT electronically-controlled six-speed automatic transmission with sequential shift lock mode. It will power the Lexus flagship from nought to 62mph in 6.3 seconds.
The car has well balanced, 53/47 front to rear weight distribution. The front and rear suspension systems make extensive use of aluminium in their construction and feature new bearings, retuned bushes, a long wheel stroke and redesigned shock absorbers to achieve increased ride comfort, stability and responsiveness. Electronically modulated air suspension remains standard equipment. This system is the first in the world to utilise the non-linear H¥ control method to control its damping and achieve unmatched stability and ride quality. The ability to lower ride height at high speeds improves aerodynamic properties resulting in a coefficient of drag (Cd) of 0.25, among the lowest of any passenger car.