Improvements for top roadster
BMW’S Z4 Roadster now has an improved folding hard-top.
A reinforced hydraulic system means it can now be raised or lowered at speeds of up to 25mph.
The Z4 costs from £29,480 to £39,450.
About 2,231 were sold in 2011 in the UK.
The model is one of several BMWS built in South Carolina since 1994, where the two millionth car arrived this week. Next will be an X4 for 2015.