Holden shows the Yanks!

"This was a great program to work on as I was given the opportunity to really stretch the limits of the Global Rear Wheel Drive architecture and create a truck with unique and bold proportions," Leach said.

The Denali XT has a unibody architecture and rear-wheel drive which enables its distinctive design and efficient performance.

Denali XT's new, more efficient 4.9-litre version of GM's small-block V8 features fuel-saving technologies such as direct-injection technology, Active Fuel Management and includes the first combination of GM's two-mode hybrid system with an E85 ethanol capable engine.