The LaCrosse's interior has a crafted appearance, with chrome and woodgrain trim and soft-touch materials. Special attention was paid to keeping the interior quiet; for instance, the windshield and front glass use a special acoustical laminate, while steel laminate is used in front of the dashboard. Additional roof-pillar baffles, lower-body sound deadeners, a specially tuned exhaust system, and engine-compartment sound insulation help make the LaCrosse one of the quietest sedans inside.
The base CX and more luxurious CXL get a 200-horsepower, 3.8L iron-block V6 engine, while the Super derives its power from a 300-horsepower, 5.3L V8. Both engines are matched with a 4-speed automatic transmission.
The V8 employs active fuel management, which cuts of the fuel supply to half of the cylinders during coasting or cruising to save fuel; the base V6 also boasts 28 mpg on the highway, according to EPA estimates.
To handle the added power, V8 models come with a specially tuned suspension with Bilstein monotube struts, larger front and rear brake rotors, and high-precision steering gear.
StabiliTrak stability control, which can apply brake force to individual wheels to restore stability, is standard on the LaCrosse, along with anti-lock brakes.
Standout features available on the LaCrosse include ultrasonic rear parking assist, rear passenger reading lamps, heated power outside mirrors, dual-zone automatic climate control, Bluetooth hands-free connectivity and remote start.