You could expect to pay about $18,000 to $20,000 for a 2019 LaCrosse. RELATED: 5 Cars That Made Buick Great (5 That Ruined It) The Pontiac Bonneville had a great 50-year run on the market. In its ...

Will upping the power ante by dropping GM's exceptionally smooth and refined 275-horsepower, DOHC, aluminum 4.6-liter (278 cu-in) Northstar V8 into the Bonneville be enough for the big sedan to ...