As England gears up for the start of its World Cup campaign in the USA later this month, countless fans will be eager to demonstrate their backing for the squad. One of the most popular ways of doing this is to attach an England flag to a car window. However, British drivers have been cautioned that this could result in a hefty fine of up to £2,500, though only in specific circumstances. Under Section 40A of the Road Traffic Act 1988, it is an offence to use a vehicle on a road if its condition,