General Motors' family of Lambda-platform crossovers are still finding favor with consumers (from a platform perspective, sales were up 5 percent in 2011), but there's no hiding the three models - the Buick Enclave, Chevrolet Traverse, and GMC Acadia - are growing a bit long in the tooth. That will soon change, as GM's readying updated variants of the Enclave and Acadia, as shown here.
From what we can tell, styling changes applied to both models will be evolutionary, at the very most. The Enclave receives new headlamps, along with an updated version of Buick's characteristic waterfall grille with bolder vertical strakes. The Acadia receives similar updates, although its rectangular grille aperture suggests designers are attempting to visually tie it to the smaller Terrain crossover. Acadias will also gain restyled tail lamps, which adopt rectangular lens/lighting elements.
There's a better chance you'll see more substantial changes beneath the skin. Both prototypes boasted heavily camouflaged interiors, suggesting an extensive cabin makeover is in the works. GM's direct-injection, 3.6-liter V-6 will likely continue to serve in both models, although rumors of both turbocharged four-cylinder and six-cylinder options continue to fly wildly.
While the cosmetic revisions both inside and out are appreciated, we really hope GM manages to improve fuel economy for all of its Lambda-platform crossovers. While appreciated for their interior space and towing capabilities, GM's offerings trail several competitors in terms of fuel economy (for instance, an all-wheel-drive Honda Pilot returns the same EPA rating as a front-wheel-drive Acadia), thanks in no small part to weight. Front-wheel-drive Acadias tip the scales at 4720 pounds, while all-wheel-drive models ring in at 4925 pounds.
Expect further information on these freshened crossovers to emerge later this year. Until then, click over to Motor Trend to take a look at additional spy photos.