Straight six-cylinder petrol engines
in the BMW 523i, 528i and 535i.

How can you improve an engine that has already won six times at the Engine of the Year Awards? With a Twin Scroll turbocharger, Valvetronic and direct petrol injection for a start.

The improvements are evolutionary as each one of the three technologies has been developed further. What is revolutionary however is how they compliment one another. In the BMW TwinPower Turbo in the BMW 535i they are combined in one complete package. The result: 225 kW (306 hp), 400 Nm across a wide speed range and silky smoothness. And all this at a fuel consumption level of just 8.5 l/100 km.

Impressive smoothness and high performance are also what characterise the straight six-cylinder engine in the BMW 523i and 528i. Alusil cylinders and a magnesium crankcase make it one of the lightest six-cylinder engines in its class: 150 kW (204 hp) in the BMW 523i, 190 kW (258 hp) in the BMW 528i. An advantage that you not only notice with the driving dynamics but also the fuel consumption of 8.0 l/100 km. So can these values be improved upon? Of course, with the eight-speed automatic transmission Steptronic.

Fuel consumption / CO2 emissions