Treat yourself to a test drive in the 2016 Buick Cascada. This 2 door, 4 passenger convertible has not yet reached the 20,000 mile mark! Under the hood you'll find a 4 cylinder engine with more than 200 horsepower, and for added security, dynamic Stability Control supplements the drivetrain. The engine breathes better thanks to a turbocharger, improving both performance and economy. It…