BMWi, the sub-brand within BMW, has unveiled its third concept, the i8 Spyder. Based on the i8coupe that debuted last year, the i8 Spyder appears to be a couple of steps closer to the production models that will eventually go on sale to the public. Like the coupe, the i8 Spyder is a plug-in through-the-road hybrid with a 96 kW (131 horsepower) electric motor up front and a mid-mounted turbocharged three-cylinder gas engine producing 223 hp that powers the rear. The beauty of the i8 Spyder’s drivetrain is the car can be front-wheel-drive, rear-wheel-drive or all-wheel-drive depending on whether efficiency, performance or all-weather traction is called for. Performance is also impressive, with 0-62 mph happening in five seconds and a top speed governed at 155 mph.