Acura TL is a midsize, front-wheel drive, four-door sedan powered by a 3.2-liter V6 engine. Acura offers the TL in only one trim level. Nearly every luxury feature comes standard and there are few options. There is the choice between two transmissions: five-speed automatic or six-speed manual. Included with the manual transmission is a limited-slip differential, Brembo four-piston front brake calipers and larger front brake rotors. Leather is standard and trims the seats and door panels and wraps the shift knob and steering wheel.For 2006, the Acura TL benefits from an active system to control torque steer, a tire-pressure monitoring system is now standard equipment, and there are a couple of new colors.