Base TLX models come with a 2.4L 4-cylinder engine making 206 hp. Power is sent to the front wheels via an 8-speed dual-clutch transmission, which features a torque converter to smooth out any jerkiness in the drivetrain during low speed operation. The optional engine is a 3.5L V6 making 290 hp. Power is sent to either the front, or with Acura's SH-AWD system, all-four wheels via a 9-speed automatic transmission. The TLX has a tricky niche to fill, being both a luxury car and a sports sedan at the same time. Acura have addressed this with the addition of a revised 4-wheel steering system, allowing the TLX to be both nimble and stable when carving up a twisty road. Acura lists seven different trim levels for the TLX. A choice of 4-cylinder or V6 engines and front-wheel or SH-AWD all-wheel drive, each of which can each be ordered with a Technology Package or Advanced Package. Basic levels of equipment are excellent. The base TLX comes equipped with LED headlights, Bluetooth connectivity, SiriusXM satellite radio, a rearview camera, keyless access, a multi-function display, Siri eyes free functionality and USB and iPod connectivity. Buyers who opt for the Technology Package get a navigation system with real-time traffic updates, a premium audio system with HD radio, a colored display screen, a perforated leather trimmed interior, rain sensing wipers, lane assist and lane departure warning systems as well as blind spot and forward collision warning systems. The V6-powered TLX comes in both front and all-wheel drive configurations, though all-wheel drive versions always come equipped with either the Technology or the Advanced Package. The Advanced Package includes everything in the Technology Package but adds even more safety and technology. Items in the Advanced Package include an adaptive cruise control system, a forward collision mitigation system and a lane departure mitigation system, front and rear parking sensors, auto dimming rearview mirrors, LED fog and puddle lights and a remote engine start system. Safety systems across the TLX line include anti-lock brakes, traction control and stability control. Front, side, side curtain and driver's knee airbags are all standard.