As the summer holiday season is in full swing, drivers hiring cars are warned of potentially high excess fees at the rental desk. Without purchasing excess protection, drivers could face significant expenses if their hire car is damaged or stolen, even if it’s not their fault. According to our latest research, excess fees are on average £1,300, but can be as high as £2,000. Despite the importance of excess protection, new research revealed that more than a third (37 per cent) of drivers are unaware of what an excess waiver is, and a similar proportion of hire car drivers do not realise they ar…