GM offers several gas-electric hybrid models and more flexfuel models that operate on renewable E85 biofuel than any manufacturer in the North American market. GM's patented two-mode hybrid system provides excellent fuel efficiency and the power required for full-size SUVs. Increasing use of direct-injection technology increases power and efficiency.
An ultra-powerful supercharged small block V-8 delivers an unmatched balance of specific output and fuel economy. The 6.2L V-8 LSA supercharged engine in the new 2012 Chevrolet Camaro ZL1 delivers an estimated 580 hp and 556 lb-ft. of torque, which makes the Chevrolet Camaro even more powerful. Also for 2012 the entry of a more powerful and more efficient version of the 3.6L direct-injected V-6, known by its LFX engine code, debuts in a number of GM vehicles for 2012, including the Cadillac SRX, Chevrolet Camaro, Caprice PPV and Impala, as well as the Buick LaCrosse.