COME IN, YOUR TIME IS UP
With traffic wardens becoming almost as powerful as policemen, overstaying your parking welcome can be a costly business. One way to make sure you don't meet a meter maid is to use the digital Car Parking Timer keyring. Easy to set, it beeps a warning that your time is almost up, and when not counting down, it shows a conventional clock display. At £4.99, it's a cheap alternative to paying penalties. From Auto Unique on 0871 220 5285 (www.auto-unique.co.uk).

YOUR GUARDIAN ANGEL
The Classic Road Angel speed trap locator has been replaced by a stylish new Road Angel model that includes a database of the locations of all fixed speed cameras, schools, accident blackspots and congestion charging zones. The display shows the car's current speed, GPS time (which means it's always accurate) and the compass heading. There's even an optional voice mode with the dulcet tones of the famously fast ex-racing driver Tiff Needell warning you of approaching speed cameras. It costs £399.99 including six months' free updates and two power leads. For further information contact Blackspot Interactive on 01327 855 586 (www.blackspot.com).

NAGGING VOICE FROM YOUR FUEL TANK
According to the AA Trust, around 120,000 motorists fill their car's tank with the wrong fuel every year. Putting petrol in a modern diesel engine can easily wreck the injection system, but Dieselguard, a box that sticks to the inside of the fuel filler flap and uses the same principle as birthday cards that play a tune when opened, warns the user in a synthesised voice to "insert diesel fuel only". At just £12.50 including carriage, it's an inexpensive way to safeguard your engine. Contact UK Fuelguard on 0845 451 3434 (www.dieselguard.com).