BMW built its i8 model originally as a coupe, as a means of testing out new engineering, such as a carbon-fiber frame, and a hybrid drivetrain. Futuristic looks and an engaging driving character certainly help make the car more enticing. For the 2019 model year, BMW adds a roadster variant, with a power retractable top.
The i8 uses a turbocharged 1.5-liter three-cylinder engine to drive the rear wheels, and an electric motor to drive the fronts. For the 2019 model year, the total output of that system goes to 369 horsepower, modest by supercar standards but getting the i8 to 60 mph in 4.2 seconds.