DVLA says 'you must' as thousands of motorists risk £1,000 finesThe DVLA has issued a warning to driversView Image Drivers have been warned (Image: Getty Images)The Driver and Vehicle Licensing Agency (DVLA) has issued a warning to motorists, with hundreds of thousands at risk of being slapped with a £1,000 fine. The alert comes as recent estimates suggest there are nearly half a million untaxed vehicles on UK roads. Anyone found driving an untaxed car, van or other vehicle could face a fine up to £1,000. While it's an offence to drive an untaxed vehicle, there are some exceptions to this rule. Some car tax rule changes were introduced in April, so even if you previously did not have to pay car tax, you may be required to now.