Police are hunting two thieves caught on CCTV stealing a Mercedes in just 60 seconds - using a hi-tech relay device which allows crooks to start luxury cars without KEYS. <br /><br />The gadget - which looks like a TV set top box - receives signals from a key fob which is then bounced to the car enabling thieves to open the doors. <br /><br />Signals can travel through buildings, meaning thieves can open cars without needing to break into properties to steal keys.
