Tow bars provide a handy way to pull a small trailer or attach bike carriers to the back of the car. It might seem obvious, but installing a tow bar suggests you're likely to be towing trailers ...

and if the car is fitted with a trailer stability system. Some tow bars and electric sockets are easy to use, others have you cursing as you kneel on the ground and reach far under the bumper to p ...

Some electric cars suffer from low towing limits relative ... but less happy with the awkward tow bar installation, which places the socket and breakaway attachment a long way under the rear ...