And for 2010, the TL SH-AWD® is now available with either a Sequential Sportshift 5-speed automatic or an all-new 6-speed manual transmission. However, the special TL 6MT goes well beyond the addition of a new transmission. Acura engineers developed a complete performance package for the 6-speed model that includes numerous enhancements to handling, steering and reliability. Not only is the manual transmission model the best performing Acura TL ever, but it is the top performer in handling amongst every vehicle in its class.The 2010 Acura TL and TL SH-AWD® are each fitted with a transversely mounted V-6 engine that has been painstakingly engineered to meet the specific requirements of each TL model. The TL features an all-aluminum 3.5-liter V-6 with single overhead camshaft cylinder heads and 24 valves- with the intake valves actuated by Acura’s VTEC® (Variable Valve Timing and Lift Electronic Control®) system. This compact and efficient engine produces 280 horsepower and 254 lbs-ft of torque. The TL SH-AWD® is powered by a 3.7-liter V-6 that shares many features with the 3.5-liter engine, but gains displacement through larger cylinder bores and increased stroke. With 305 horsepower and 273 lbs-ft of torque, the 3.7-liter engine is as powerful as some V-8s, and is the most powerful engine ever offered in an Acura. Similar to the 3.7-liter engine that powers the 2010 RL, the TL SH-AWD® engine features a VTEC® system which varies the exhaust valves as well as the intakes to contribute to elevated power output. The 3.7L engine is even lighter than the 3.5-liter engine, due in part to the use of aluminum rather than iron cylinder liners.
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