We have had the car for 9 days. It flashed up an error message about the gearbox. Dealer says it's just a sensor and wants it in to repair. I have googled a bit and think it actually might need a whole new 'gear selector mechanism'. I have lost trust in the car and just wanted a reliable car to take me and do around safely. I don't feel safe and just want my money back. Can anyone advise on what my rights are? I hate confrontation and feel sick and shaky.