A 450-hp V-8 engine powers the Arnage R and RL models of the Arnage. The Arnage T model have a sport-tuned suspension and seven-spoke, 19-inch alloy wheels for a more sporty feel. The outside mirrors are made of electrochromatic glass to reduce night glare and can fold in electronically when parked. Owners can choose between walnut, oak, bird's-eye maple or black lacquer interior trim to complement the myriad interior leather options.For 2007, the Arnage receives power and transmission changes. The engine is now rated at 500 horsepower in the performance Arnage T and is controlled by a six-speed automatic transmission.