This is something every driver should be aware of, it's an extract from the NASA newsletter.

"We'll make no apology for returning to a theme we've mentioned several times before - car appearance, and the link between this and driving standards.

If the scrutineers see a car presented in such a state that they think the driver isn't going to care about acquiring a few more dents, they'll do the marshals a favour and stop that car racing until some effort's been made to tidy it up.

We hope this thinking will filter through to all drivers that when heading into a corner you'll think of all the extra work you're going to cause yourself unless you give that other car a bit of room."