Traded in my zafira yesterday for a fiesta tdci zetec. Looked at it in length whilst at garage, drove it etc. Paid for it, did paper work, got dad to hpi car even though garage did it to. Drove home 26 miles all fine. Got in this eve to drive 4 miles to work, hubby said bumper looked fine, re-start car. The bumper had been slighlty pushed back to hide a crack few cm long but the whole bumper feels loose and looks wobbly when car is started. 2ndly the bonnet took 5 minutes to shut although i saw him do it at garage! then driving 60mph the speedo inicator went slack and dropped to 0, was only after slowing down for speed bumps its started to register again. What are my rights, can i go back and demand refund and old car back?