Driving the 2021 Slingshot R Autodrive is an adrenaline-charged adventure. With a potent Prostar 2.0L 4 Cylinder engine unleashing 203 HP, it's a symphony of power. The Autodrive system seamlessly marries automatic convenience with manual thrill. Navigating twists and turns is a ballet, thanks to a chassis tuned for precision and a peak lateral grip of 1.02 g. The 8,500 RPM rev limit beckons you to push boundaries, while the 8.2 lb/hp power-to-weight ratio ensures a dynamic, responsive ride. This open-cockpit marvel transforms driving into an immersive experience, a celebration of speed and style that transcends the ordinary.Polaris Slingshot Autodrive, 2021 model, Three-wheeler, Autodrive technology, Open-air roadster, Unique design, Three-wheel vehicle, Street-legal, Thrilling performance, Sporty styling, Exhilarating ride, Automotive innovation, Rider and passenger adventure, Dynamic handling, Autocycle, Roadster experience, Polaris vehicles, Urban cruising, Open-air driving, Automotive excitement Engine Type: Prostar 2.0L 4 Cylinder Displacement: 1,997 cc Bore and Stroke: 93 mm x 73.5 mm Compression Ratio: 11.5:1 Fuel System: Multiport Injected Ignition: Proximity Key with Keyless Start Front Brakes: Vented cast iron rotor, aluminum center hub, 298 mm diameter Front Tire: 225 / 45R18 Rear Brakes: Vented cast iron rotor, aluminum center hub, 298 mm diameter Rear Tire: 305 / 30R20 Dry Weight: 1,667 lb. (756 kg) Fuel Capacity: 9.77 gal. (37.1 L) Wheelbase: 105 in. (2,667 mm) Transmission: Hydraulically Actuated Automated Manual (AutoDrive) 5 Speed Synchromesh w/ Reverse Final Drive: Carbon Fiber Reinforced Belt, 36 mm x 147 T