BMW TwinPower Turbo 4-cylinder
The 4-cylinder petrol engines sDrive20i and sDrive28i with innovative BMW TwinPower Turbo technology boast impressively high dynamics and efficient consumption.
While the fully-variable valve control Valvetronic and the direct petrol injection lower consumption, the TwinScroll turbocharger and the double-Vanos increase performance and response. The figures speak for themselves: the BMW Z4 sDrive28i is capable of a powerful 180 kW (245 hp) and accelerates the BMW Z4 Roadster with 350 Nm from 0 to 100 km/h in a rapid 5.7 seconds – with consumption of 6.8 l/100km and CO2 emissions of 159 g/km.
The BMW TwinPower turbo sDrive20i delivers an equally impressive performance: the 135 kW (184 hp) drive train uses 6.8 litres per 100 km and accelerates from 0 to 100 km/h in just 6.9 seconds. CO2 emissions are only 159 g/km. The BMW sDrive18i is just as economical. The BMW TwinPower Turbo engine consumes 6.8 l/100 km and has CO2 emissions of 159 g/km. 115 kW (156 hp) accelerate the BMW Z4 Roadster dynamically through the entire rev range from 0 to 100 in just 7.9 seconds.
All petrol engines in the BMW Z4 already meet the requirements of the EU6 emission norm that comes into effect in 2014.