2011 BMW Z4 Sdrive23I Highline Edition

The E89 Z4 sDrive20i (2011-2016) used the N20 2.0-litre turbo producing 184hp. The turbocharged four offered good torque and efficiency, though purists missed the six-cylinder character.

Engine: N20 timing chain stretch is critical concern, especially 2011-2014. Budget for inspection/replacement. Otherwise reliable. Roof: Retractable hardtop mechanism complex - check operation thoroughly. Listen for motor strain. Electrics: Various sensors. iDrive can glitch.

M Sport package, Manual (if available), Leather, Professional nav