Acura's flagship sedan shuffles a few features for 2007. The RL has a 290-hp V6 engine and a 5-speed automatic transmission. It also has Acura's Super-Handling All-Wheel Drive (SH-AWD), which apportions power between the rear wheels to enhance cornering stability. Front side airbags and curtain side airbags are standard. So are ABS, traction/antiskid control, and keyless entry and starting. For 2007, steering-linked xenon headlamps and a voice-activated navigation system move from standard equipment to an available Technology Package. The option introduces a rearview camera and includes the AcuraLink system providing OnStar assistance, real-time traffic conditions, and vehicle maintenance data. A second Technology Package, priced as a separate model, adds run-flat tires, adaptive cruise control, and Acura's Collision Mitigation Braking System, which signals of approaching objects and applies the brakes and tightens the front seatbelts if it determines a collision is unavoidable.