BMW during a 88th Geneva International Motor Show 2018.

BMW M3 CS (fuel expenditure combined: 8.5 l/100 km [33.2 mpg imp];
CO2 emissions combined: 198 g/km)

 

BMW i8 Roadster (fuel expenditure combined: 2.1 l/100 km [134.5 mpg
imp]; energy expenditure combined: 14.5 kWh/100 km; CO2 emissions
combined: 46 g/km)

 

BMW i8 Coupe (fuel expenditure combined: 1.9 l/100 km [148.7 mpg
imp]; energy expenditure combined: 14.0 kWh/100 km; CO2 emissions
combined: 42 g/km)