Seems that motor is putting out roughly 23hp and 5 ft/lb torque according to the difference from year to year, does that sound about right?
Buick’s 37mpg 2012 LaCrosses with eAssist Priced at $30,820, New V6 with 303HP also Available
Nevermind, wiki has the answer!
At the LA Auto Show, on November 15, 2010, General Motors announced that it would be releasing an all-new version of the BAS system available in the 2012 Buick LaCrosse.[8] While still a Belted Alternator Starter system, the system is named eAssist and includes a larger more powerful Hitachi-supplied[citation needed] 115 Volt Lithium Ion battery and a 15 kW (20 hp) motor-generator that delivers 79 lb·ft (107 N·m) of torque.
Are these sold in america?! If so, seems like a great way to either hybrid your gasser or turn a motorcycle/scooter or hella fast bicycle!