I hate gap insurance, it's a con it a lot of cases, intact I'm surprised it's even allowed.
The best situation is you write the car off 1 day before cover ends and get new money back. How can this product exist??
Tons of profit for most sellers. I'm not against profit just massive percentages!
Also you have to be careful that you make sure you get the best payout possible from your motor policy cos if you take a crap offer the gap will only cover book to original invoice.
Also you need to consider the situation you are in if the car gets written off. Does you motor policy do new for old in the first year? Also you motor policy has to leave you as you were so you should never be in a position where you can't get the same car with same spec and miles.
Having said all that if it's cheap it can be worth it. Someone mentioned £100 for 3 years and max 10k. That sounds good to me!
Just make sure you crash your car after 2 years and 364 days and you are laughing!