At launch, the Convertible’s engine range consists of two petrols and a diesel. The former pair are a 134bhp 1.5-litre three-pot for the Cooper and a 189bhp 2.0 four-cylinder for the Cooper S. The Cooper D’s oil-burner is a 114bhp 1.5-litre three-cylinder. All are teamed with a six-speed manual transmission, with an optional six-speed auto costing £1,270.