If GM's latest North American scheme has any stability, the new 2010 Buick LaCrosse is the semi-luxury front-drive bridge between Chevy and Cadillac. Engines at launch will be GM's new spark-ignition, direct injection (SIDI) 3.0L gas V-6 in the CX and CXL trim levels. It's rated a healthy 260 hp and 214 lb-ft, and a manufacturer's estimated 18 city, 27 highway mpg on the EPA cycle. It will come with front or all-wheel drive. The AWD system is an upgrade to the Saab 9-3x's Haldex system, which can direct up to 85% of the power to the rear wheels even in the dry, to simulate rear-drive dynamics. It comes with an electronic limited slip differential.
Power for the top of the range CXS is the now familiar direct-injection 3.6L V-6, making 280 hp and 261 lb-ft in this application, and achieving 17/26 mpg. Buick estimates a high-6.0-sec 0-60-mph time. This engine will be available only with front drive. A six-speed automatic is the only option for either engine, and with a 20-gal fuel tank, range is more than 500 miles in either case. What with fuel price volatility and imminent new Corporate Average Fuel Economy standards, a four-cylinder and possibly a mild hybrid version of the LaCrosse are likely.

2010 buick lacrosse