Car windscreen mistake could cost £300 and affect your car insurance A MISTAKE motorists are making could cost them £300 and negatively affect their car insurance. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Is it illegal to smash a car window to save a dog trapped inside a hot car? Driving theory test: Women learners outperform men every year for past decadeWhy you can land a £1,000 speeding fine while driving a van under the official speed limitAston Martin left to languish in a garage for 50 years is tipped to sell for £60,000You could be fined £1,000 for towing a caravan if you passed your driving test after 1997 What are penalty points and how quickly they can land you a driving ban?