The V8 was clearly the most capable engine available, but it was also the most inefficient. (edmunds.com)
The sleek and powerful looks of the car, both inside and out, are matched by the raw power that can be drawn from the more than capable engine system. (thesupercars.org)
There are three more engine selections for you to choose from: Vortec 6.0 L V8 VVT gives you 341 hp, 373 lb - ft of torque, 2.8 L Duramax Turbo - Diesel dishes out 181 hp, 369 lb - ft of torque, and finally, a 6.0 L V8 SFI Gaseous CNG / LPG capable engine churns out a powerful 341 hp and 373 lb - ft of torque. (mckinneybuickgmc.com)