Manchester United fans are set to hit the road in their thousands on Saturday as their team heads off to Wembley for the FA Cup Final.
But while they are sure to remember their hats, scarves and replica shirts, motorists are being urged not to forget to and check their cars before hitting the road to Wembley.
Saturday's final sees Manchester United - whose shirts are sponsored by Chevrolet - taking on Crystal Palace.
With the final kicking off at 5.30pm - meaning it will be getting on for 9pm by the time the cup has been paraded round the stadium should the match go to extra time and penalties - many supporters are expected to travel by car rather than train.
Highways England is warning motorists that the M6, M40, M1, M25 and other routes between the north-west and London will be particularly busy before and after the game with narrow lanes and 50mph speed limits in force on various stretches of the motorways.
But it says its regional control centres will be monitoring traffic levels, setting overhead electronic signs and dispatching patrols to help ensure fans and other motorists are kept moving.
Drivers are being advised to leave plenty of time for their journeys and to check travel conditions both before leaving home and - when and where it is safe to do so - while en route to London.
Motorists are also being urged to check their cars are in good working order for the return trip to London and to make sure they take regular breaks from driving.
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