Car insurance shock - How simply using a sat nav could invalidate your cover MOTORISTS could invalidate their car insurance by using a sat nav while driving on the roads due to the fact it could be classed as a modification. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Citroen’s practical performerMen pay around £100 on car insurance than women do, but there is a reason whyLamborghini Aventador SVJ REVEALED - Monstrous 770 hp supercar performance and specsCar insurance - How much a dash cam can save you and which insurers offer discountsYou may not car insurance you thought you bought if you used a comparison site to buy itCitroen Berlingo REVIEW - Unbelievable value and practicality but there is a problem