An assistance and concierge service is no longer available on Lexus' flagship sedan for 2005. The LS 430 has a 290-hp V8 and a 6-speed automatic transmission with manual shift gate. Antiskid/traction control, antilock 4-wheel disc brakes, tire-pressure monitor, and steering-linked headlights are standard. A firmer Euro-Tuned Suspension option substitutes 18-inch wheels for the standard 17s. Head-protecting curtain side airbags are standard, as are torso side airbags and knee airbags for driver and front passenger. Gone is the optional Lexus Link service, which provided assistance through GM's OnStar network. Continuing option groups start with a Premium Package including front/rear obstacle detection, heated rear seats, and heated/cooled front seats. The Modern Luxury Package includes a navigation system with a rearview TV camera that displays on the navigation screen when backing up. To that, the Custom Luxury Package adds power door closers and adaptive cruise control, designed to maintain a set following distance. The top-line Ultra Luxury Package includes self-adjusting air suspension, rear air conditioning, massaging rear seats, and other features. Available with the Custom or Ultra options is Lexus' Pre-Collision Safety System, which automatically tightens seatbelts and readies full breaking power based on data from a motor sensor that "anticipates" a crash. Also optional is Lexus' SmartAccess keyless access and starting.