DETROIT - GMC unveiled the 2011 Acadia Denali in Detroit on Dec.17, expanding GMC's luxury crossover lineup.

The new model is powered by a 3.6L direct injection V-6 engine with VVT expected to optimize performance and fuel economy, while also reducing emissions - including a 25-percent reduction in cold-start emissions. Engine performance is also enhanced by the advanced six-speed automatic transmission. Maximum towing capacity is 5,200 lbs.

The suspension is tuned specifically for the Acadia Denali's 20-inch wheels and the available AWD system enhances dry-road handling and provides increased traction on wet, snow and ice-covered roads. Four-wheel disc brakes with ABS are standard, as are the following features:

• StabiliTrak electronic stability control system with rollover mitigation technology.

• Traction control system.

• Tire pressure monitoring system.

The 2011 Acadia Denali goes on sale in the third quarter of 2010 and will be available in both front-wheel drive and all-wheel drive models, as well as seven- and eight-passenger configurations. The standard 3.6L direct injected V-6 contributes to an EPA highway rating of 24 mpg with FWD models.