As part of an range of midlife changes to the BMW Z4 roadster, the automaker will add a new entry-level sDrive18i to the lineup. The car made its public debut at the Detroit Auto Show. The model is powered by a turbocharged 2.0-litre engine that delivers 154bhp and 177lb ft. This enables the six-speed manual sDrive18i to accelerate from zero to 62mph in 7.9sec and continue on to reach a top speed of 137mph.
The combined fuel economy can return 41.5mpg, with 159g/km in CO2 emissions. BMW also offers it with an optional eight-speed automatic. Meanwhile, the engines in the other Z4 models - sDrive20i, sDrive28i, sDrive35i and sDrive35is – will stay unchanged. The facelifted roadster gets only minor cosmetic changes. The most striking change is the revised LED headlights.
It comes with new alloy wheel options while it gets minor exterior trim detailing revisions. The other revisions include the optional Design Pure Traction styling pack, which gives the cabin some contrasting black and orange trim. In addition, the interior gets new gloss black trim for the air vent and iDrive surrounds as standard equipment.
For the sDrive28i models and above, leather trim is also standard. A Fineline Anthracite wood finish is offered as an option. On the other hand, the M Sport package (which consists of bespoke suspension settings, alloy wheels and exterior and interior trim) is available again. This time, the sDrive35is range-topper is offered with a more focused version of this pack.