Specifications. 2020 Polaris Slingshot. VEHICLE TYPE. front-engine, rear-wheel-drive, 2-passenger, 0-door roadster. ENGINES. DOHC 16-valve 2.0-liter inline-4, 178 or 203 hp, 120 or 144 lb-ft. TRANSMISSIONS. ... DIMENSIONS. ... PERFORMANCE (C/D EST) What-sapp:+1(720)588-0470.