BMW E89 is the chassis code of the second generation of BMW Z4. It now has a retractable hardtop like the Mercedes SLK replacing the previous roadster and coupé versions for the 2009 model year. There are exclusively six-cylinder engines on this generation. However, there is speculation that turbocharged four-cylinder motors may replace the non-turbo six-cylinder powerplants.The new model was officially announced on 13 December 2008. The vehicle was unveiled in 2009 North American International Auto Show in Detroit.
