Click above for high-res gallery of Buick LaCrosse spy shots

Judging from spy pics we've seen of the upcoming 2010 Buick LaCrosse, General Motors may have a winner on its hands, even if it is getting delayed. If specs from GM Inside News are accurate, Buick's new midsize sedan will have significant new powertrains, too. The big news comes from an all-new 3.0L, direct-inject V6 engine based on the larger 3.6L VVT powerplant that the General uses now. The small-displacement V6 packs some serious punch at 250 hp, and will be mated to the automaker's new 6T70 six-speed transmission for improved efficiency. The new 3.0L engine is likely to achieve a significant fuel economy gain over the 3.6, with highway economy estimated at close to 30 mpg. The new LaCrosse will also feature the same 3.6L powerplant that underpins the Chevy Traverse, with direct injection and an estimated 290 hp.

Other details about the new LaCrosse include HID headlamps, a heads-up display, rear view camera and all-wheel-drive. We haven't received any details on the AWD system, but we're guessing it will be the same unit that currently drives all four wheels of the new Saab 9-3X. We're looking forward to getting more details on the Buick LaCrosse, and when we do, you'll be the first to know.

[Source: GM Inside News]

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