The BBC Television consumer programme Watchdog claims to have discovered that certain models of Peugeot 307s have a potentially serious fire risk, which some owners have been unaware of. The programme's website reported that several viewers had noticed smoke billowing from the bonnet when driving and, in some cases, their cars actually catching fire. The cause is the ignition key becoming stiff in the lock and remaining in the 'start' position which can cause the starter motor to overheat.