Source: http://news.pickuptrucks.com/2012/09/spied-2014-gmc-sierra-1500-3500.html

PickupTrucks: Spied! 2014 GMC Sierra 1500/3500

Posted by Mark Williams | September 28, 2012

Photos from KGP Photography

With all the recent buzz about what GM told dealers at the national meeting in Las Vegas, we knew it wouldn't take long before we saw something interesting from our spies. We've gotten our best looks to date at GMC's 2014 Sierra 1500 and the Sierra 3500 HD dualie prototypes.

Our spy shooters say the prototypes caught here look complete with the final production-spec headlights and taillights, as well as the front and rear bumpers. It's possible both these might be Denali models, but there is no mistaking the similarities between the grille shapes and logo masking.

It's easy to see the Sierra's final headlight designs as it show nicely through the camouflaged front clip, revealing a chrome-rimmed, blocky shape, with minimal jewelry inside the headlight elements. At least on these test models, it appears that GMC designers have avoided the popular LED craze found on an increasing number of 2013 model headlight designs.

According to our shooter regarding the Sierra 1500, this could be the Denali model, with what looked like retractable running boards fitted into the lower sill.

The Sierra 3500 HD dualie prototype, cleverly made to look like its Chevy partner, is an imposing beast, with a larger, beefier front fascia. That could mean there are some Duramax improvements to come that require more air-flow for cooling purposes. Likewise, it looks like they're keeping the same DEF tank location as on existing turbodiesel models as well.

*Note: view pictures at source link above

My next vehicle:

1500 Crew Cab 4wd - driver front angle.bmp

Well, if I win the lottery!!

I will venture out here and say that the 1500 and the Heavy Duty's (2500/3500) are going to have different headlights/frontends based on the pictures in the article.

I'm very excited to see what the all-new 2014 GMC Sierra line-up will look like. I wish I was able to go to the premiere at the NAIAS in Detroit, if that's where GM will be finally showing them to the public.

Too Early to really judge the product. Glad to see that it looks like the Duramax is going to get improvements.

Whoa... what a sweet crumb, that Sierra headlight...