I bought a 2013 MINI One convertible a year ago, and the gearbox has always been notchy. The last couple of months I have had trouble getting it into first gear, and the gears are getting stiffer all the time. I took it back to the dealer to be fixed under the warranty but a mechanic took it for a test drive and said he couldn’t find anything wrong with it. I pointed out how notchy the gears were and he said that maybe it’s a ‘design fault’. I’m not happy about this – do you know of any problems with the 2013 MINI gearbox? Should I persist with my claim?