2005-2008 Acura RL: Year-to-Year Changes

2006 Acura RL: For 2006, the RL gained an optional Technology Package that included run-flat tires and adaptive cruise control, plus Acura's Collision Mitigation Braking System, which signaled of approaching objects and applied the brakes and tightened the front seat belts if it determined a collision was unavoidable. The engine's horsepower rating dropped by 10, to 290.

2007 Acura RL: Acura's flagship sedan shuffled a few features for 2007. For 2007, steering-linked xenon headlamps and a voice-activated navigation system moved from standard equipment to an available Technology Package. The option introduced a rearview camera and included the AcuraLink system providing OnStar assistance, real-time traffic conditions, and vehicle maintenance data. A second Technology Package, priced as a separate model, added 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.

2008 Acura RL: The 2008 Acura RL carried over with no changes pending a redesign due in calendar '08 as a 2009 model.