Though the newish Buick Enclave has received plenty of accolades, it's the right vehicle at the wrong time for GM's smallest brand. The other two vehicles in Buick's lineup – the LaCrosse mid-size sedan and Lucerne large sedan – might better appeal to gas-conscious buyers than a large CUV, but they're far from leaders in their segment. A new LaCrosse, however, will reportedly be arriving as a 2010 model. Car and Driver just published these spy shots of a pre-production model caught with its camouflage pants down, and they reveal its design will borrow heavily from the Invicta Concept that was revealed at this year's Beijing Motor Show. That's not a bad thing, as the Invicta is a fetching sedan that went over well with the Chinese crowds. And while we could be mislead by the grainy quality of these spy shots, we swear there are two rows of portholes on the hood.

The '10 LaCrosse will likely arrive atop GM's Epsilon II platform that also underpins the upcoming Insignia and will next find its way to the '11 Saturn Aura and '12 Chevy Malibu. Engine choices are anyone's guess, but don't expect another V8 Super model. We guess the next-gen LaCrosse will get a smattering of four- and six-cylinder engines, the smaller of which could employ turbocharging and direct injection. Also check out C&D's pics of the new LaCrosse interior, which looks like a smaller version of a Cadillac CTS interior. Since we know have pictorial evidence of preproduction prototypes this far along, it's safe to assume that Buick will debut the 2010 LaCrosse during the upcoming auto show season. Our bet's on January debut at the Detroit Auto Show.

Related GalleryBeijing '08: Buick Invicta Concept

[Source: Caranddriver.com via Jalopnik]