For the 2008 model year BMW is upgrading is Z4 Coupe and Roadster range with two new special editions as well as the carmaker’s trademark EfficientDynamics technology. It appears no car is safe from the new fuel-saving tech, including performance rides like the new Z4. For a small price premium, Z4 buyers can opt for the ‘Exclusive’ and ‘Sport’ editions which feature extras such as heated leather seats, a leather steering wheel, new paint schemes and unique alloy wheels.

The addition of the new EfficientDynamics allows the Z4 range to achieve a reduction in fuel-consumption with most of the reduction attributable to the installation of a new friction-optimized rear axle transmission in the six-cylinder variants.

This will be the last major update for the Z4 range until the all-new model arrives in early 2009. BMW will be positioning the new model into a higher price point, converting the car into a coupe-convertible with a folding metal hardtop in the process.