After the Concept Vision EfficientDynamics in Frankfurt in autumn 2009, the final version of the i8 was introduced four years later and marketed in early 2014. The price of this spectacular 374 hp four-wheel drive coupe is very high, but its very advanced technology includes a 1.5-litre 3-cylinder engine mated with an electric “plug-in” motor. This roadster variant is released in 2017.