BMW has announced a 2.2-litre version of the Z4 roadster with production beginning in October.

With 168bhp and 155lb-ft of torque, the Z4 2.2i will be priced at £24,255 on-the- road and will accelerate from 0-62mph in 7.7 seconds, with a theoretical top speed of 140mph. Fuel consumption is 32.1 on the combined cycle with carbon dioxide emissions at 214g/km. All Z4 models are fitted with run-flat tyres as standard.