The Buick LaCrosse is a mid-sizeexecutive sedan manufactured and marketed by Buick since 2004. The LaCrosse is now in its third generation, slotted above the Buick Regal as the brand's flagship vehicle.
The first-generation LaCrosse replaced the Century and Regal in North America beginning in the 2005 model year, serving as the brand's mid-size car. The automobile was originally sold as the Buick Allure in Canada. For 2010, the LaCrosse was completely redesigned and moved upmarket as a larger premium sedan. The model was redesigned again for 2017.
Production of the Buick LaCrosse for North America ended on February 15, 2019.
The LaCrosse debuted in late 2004 as a 2005 model, replacing the Century and Regal. The name was borrowed from a Buick concept car shown in 2000 referencing the sport of lacrosse.
Riding on a revised version of the W-body known as MS2000, the LaCrosse was initially available with two powerplant choices in three trim levels: a 3.8 L 3800 Series III V6 available in base CX and mid-level CXL forms, and a 3.6 L HFV6 V6 in the top line CXS model. The CXS was replaced by the Super in the US market for the 2008 model year. However, sales of the CXS continued in Canada until January 1, 2008.
Power is routed to the front wheels via a 4T65-E automatic transmission (4T65-E HD on Supers). The LaCrosse, along with all other GM vehicles powered by the 3.8 L V6, became the first SULEV-compliant vehicles for 2006.
This generation of LaCrosse was sold in Canada as the Buick Allure, as the verb crosser is a French Canadian vulgarity that can mean either "masturbation" or "scam".
The final first-generation LaCrosse was manufactured on December 23, 2008.
The LaCrosse received a facelift for 2008. The vehicle's front end design was based on the Buick Velite concept, which was later used by the Chinese LaCrosse.
All trim levels received a chrome exterior appearance package, factory remote start feature, XM Satellite Radio, telescoping steering wheel column, redundant steering wheel controls and dual-zone climate control as added standard equipment. CX added a leather-wrapped steering wheel, theft deterrent system, illuminated vanity mirrors, driver information center personalization and more.
A Super trim of the LaCrosse debuted for 2008. The LaCrosse Super was positioned as a higher-performance model of the sedan with revised front end styling, as well as a return of displaying four Ventiports under the hood, a rear spoiler, projector beam fog lights, Magnasteer, larger brakes, and revised suspension tuning with standard Stabilitrak.
Power came from the 5.3 L LS4 small-block V8 engine featuring Active Fuel Management technology, which is routed to the front wheels. The combination of a V8 and front-wheel drive are not often utilized due to torque steer which is present in any front-wheel-drive car. This powertrain was also found on the Grand Prix GXP, Impala SS, and Monte Carlo SS. The Super model was one of the fastest modern production Buicks ever built, with a factory top speed of 150 mph (240 km/h), and 0–60 mph times of 5.7 seconds. Only the 1987 Buick GNX offered a similar level of performance ratings until the Super was introduced. The LaCrosse Super was discontinued in 2009.
Interior changes included special Super badged cluster with blue face, a wood grain shift knob, and dream weave leather seating. Interior colors for the Super were Platinum and Mocha Brown, while exterior color choices were Mocha Brown Metallic, Black Onyx, Red Jewel Tincoat, and Platinum Metallic.
The LaCrosse received a Good overall score in the Insurance Institute for Highway Safety's frontal impact crash test and a Marginal overall rating in the side impact test. Injury measurements for the side-impact crash test include a Poor mark for the driver's torso and a Marginal score for the driver's pelvis and leg. Side airbags are limited to the curtain type for both front and rear rows; the torso-type side airbag is unavailable. 2007 models also earned one out of five stars in a National Highway Traffic Safety Administration side-impact crash test. The IIHS also found that the 2006–08 model year LaCrosse had the second-highest fatality rate in the large four-door car class; only the Buick Lucerne fared worse.
Shanghai GM introduced the Buick LaCrosse in February 2006, as a more upscale companion to its Buick Regal sedan. Designed by Shanghai GM's Pan Asia Technical Automotive Center (PATAC), the Chinese LaCrosse is based on the same architecture as the North American model, but possesses different exterior and interior designs, and a different engine lineup. The car is also built in Taiwan by a joint Yulon-GM venture.
In 2008, Shanghai GM introduced a mild hybrid system on the LaCrosse. Using the Belt Alternator Starter system, it is the first hybrid vehicle in the Chinese market as well as the first hybrid in its segment.
Launched at the 2009 North American International Auto Show in Detroit, Michigan., the second-generation Buick LaCrosse was redesigned from the ground-up and moved the nameplate upmarket, becoming Buick's flagship sedan.
The exterior features Buick's "VentiPorts" and the "Sweepspear", Buick styling features dating to 1949. The interior is defined by having "few straight lines and 90-degree joints, if any. Instead, surfaces and controls are rounded, coved, or arched." According to The New York Times, the new LaCrosse combined design elements from classic Americans cars of the 1930s and 1950s with traditional Chinese aesthetic elements:
Mechanically, the second-generation LaCrosse employed a long-wheelbase (LWB) variant of the Epsilon II platform, shared with the Opel Insignia and the 2010 Saab 9-5. The design was based on 2008 Buick Invicta concept, and replaces both the Chinese and North American models. The final design work was carried out at the GM design center in Warren, Michigan.
The 2.4 L Ecotec four-cylinder replaced the 3.0 V6 as the standard engine on the CX model in the first quarter of 2010. The 3.6 L V6 continues to be an option on the CX and front-wheel drive CXL and standard on the CXS and all-wheel drive CXL.
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