https://www.toyota.com/avalon/compare/avalon-vs-lacrosse -If you upgrade to the CXL, you find yourself sitting leather, then looking at a lavish trimming degree, and riding alloy wheels. The CXS provides Buick's new 3.6 liter V6 that generates 240 horsepower and is more youthful in ride quality. It's a bigger set of brakes and rear suspension.