MSRP: From $TBA Horsepower: 200 hp MPG: 20 city/ 27 highway Dimensions: 185” L, 72” W, 57” H Curb weight: 3,979 lbs. There’s more than meets the eye with the 2018 Buick Cascada. The stylish, sedate droptop is hardly a reboot of the old Riviera. Instead, Buick parent General Motors plucked the Cascada from its European Opel...