GMC unveiled the Denali XT hybrid truck concept at the Chicago Auto Show.

The GMC Denali XT features a two-mode hybrid system combined with a E85 enthanol-capable engine (bio fuel).
The new 4.9l SIDI engine with Active Fuel Management gives the Denali XT 326hp.

The GMC Denali XT concept features a very cool futuristic design with mean LED eyes.

Huge 23 inch wheels give the XT the extra coolness.
No word of course on when such a cool hybrid truck from GMC would actually be available.
Via the GMC site.