Chinese-market SLS. The standard powertrain was a direct-injected 3.6 L V6 mated to a six-speed automatic transmission, which in the STS produced and of torque. It also offered enhanced safety features, including a lane departure warning system developed by Mobileye, a blind spot monitoring system, and an improved version of GM's StabiliTrak stability control system, which could operate the steering system in addition to the brakes to help correct a skid. Additionally, options previously limited to the V8 model (such as HID headlamps and Automotive head-up display) were available with the V6. The 2008 Cadillac STS debuted at the 2007 New York Auto Show. A 2010 update for the STS removed the GM badges, although early 2010 models still retained GM badging. For 2011, the V8 was dropped from the Cadillac STS lineup. STS-V The Cadillac STS-V is a high-performance executive car of the V-Series introduced at the 2005 Detroit Auto Show, and was available for sale in late 2005. The STS-V uses a supercharged 4.4 L version of the Northstar V8, producing and . This engine is mated to a driver-adjustable GM automatic transmission with two shifting modes, larger brakes by Brembo, larger 10 spoke alloy wheels (18"x8.5" front, 19"x9.5" rear), Pirelli run-flat tires, a faster steering ratio, and a stiffer suspension than the standard STS. The engine block and cylinder heads are aluminum, the camshafts are cast iron, and the crankshaft is forged steel. Suspension is fully independent and there are four settings for the traction control system and stability control. Also different from the standard STS, the STS-V has a cooler for the rear differential oil located on the underside of the car behind the 3rd member. Engine Displacement: Power: at 6400 rpm (SAE-certified) Torque: at 3900 rpm Redline: 6700 rpm Compression ratio: 9.0:1 Fuel economy: EPA est. / (City/highway) 13/19 - real world is about 14 mpg city and 21 to 23 mpg highway. Performance The STS-V had a 0- acceleration time of 4.6 seconds and a 13.2 second quarter mile time. Appearance The STS-V's primary visual difference from the standard STS was a wire mesh grille and a 'power-dome' hood as well as six lug wheels normally seen only on larger SUVs, trucks and pickups. In addition to the grille, the front differences include the bumper, the fog light and turning signal cluster, and the hood which is slightly domed to fit over the supercharger.