optional satellite navigation, with the Caprice receiving a dual screen DVD entertainment system for the rear passengers. The Used Car Safety Ratings found that WH/WK Statesmans provide a "significantly better than average" level of occupant protection in the event of an accident. Standard features for the HSV Grange (WK) included 18-inch alloy wheels, a twelve speaker Blaupunkt sound system with a 430-watt amplifier, subwoofer and a six-stack CD player, dual-zone climate control air conditioning, leather seats and trim, eight-way power adjustable front seats, cruise control with speed alert, driver's seat and mirror memory settings, DVD player with twin seven-inch rear seat LCD screens and remote control, rear parking sensors, a leather-wrapped multi-function steering wheel, remote central locking, power windows and mirrors, a height and reach adjustable steering wheel, an electrochromatic rear view mirror, trip computer, cargo net and an immobiliser. As standard, the Grange was also fitted with a limited slip rear differential, larger front & rear sway bars, larger performance brakes and an HSV exclusive-to-Grange body kit consisting of front bumper, side skirts, rear bumper and deck lid spoiler. WL Released in August 2004, the WL brought with it an all-new 3.6-litre Alloytec V6 engine, succeeding the WK's Ecotec unit. Power and torque figures were rated at and , respectively. The Statesman's optional V8 was the version from the WK Caprice, with the WL Caprice's engine obtaining a further . The V8s received a stronger GM 4L65-E automatic transmission, while the Alloytec V6 versions received a new five-speed GM 5L40-E automatic. Several new safety features were added to the WL line-up. Such include brake assist, electronic brakeforce distribution, Electronic Stability Program and LED tail lamps. The new LED lamps give an additional of warning to trailing motorists travelling at because they illuminate in 60 nanoseconds, compared to 1,000 for conventional incandescent light bulbs. In 2005, General Motors began exporting the Statesman to China, where it was badged as the Buick Royaum. The Royaum was initially equipped with the 3.6-litre Alloytec engine fitted to the Statesman, however the 2.8-litre LP1 engine followed later in the year. Both engines were paired to a 5 speed automatic gearbox. Trims levels were known as 2.8 GL Deluxe, 2.8 GL Comfort and 3.6 GS Deluxe. The 3.6 trim level was changed to 3.6 Luxury Sports for 2005 and was priced at (). The Royaum was not a sales success, tallying 2,008 sales in 2005