Q. How many unstoppable long going?

The wheel diameter is measured from lip to lip of a tyre, and coincides with the wheel rim size. The wheel radius is half the wheel diameter, the distance from the centre of the wheel, the axle, to the outer edge

Before getting down to buying a bigger car, here are a couple of points to bear in mind

There is no end to the kind of seat covers available on the market today. We help you understand the different types to select the type of seat covers that would suit your needs the best

Braking wastes energy, reduces momentum and requires more fuel as you accelerate again. Here's a smart guide to driving efficiently by minimising braking

Keep the interiors of your car dry as it can be very tricky, painful and expensive to clean up damp interiors.