By declaring the car SORN, you will only have to pay six months' road tax so you'll save money - although the money saved on the insurance will be negligible. In terms of maintenance, these cars were designed to cover decent miles between oil changes - I don't think you'll need to change the oil every year if you're only covering a few hundred miles. Aim for every two or three years if your annual mileage continues to stay in the hundreds. Research is being conducted into the effect of modern fuels on older cars. Our very unscientific explanation is that because modern fuels contain a higher ethanol content than they used to, fuel left in a tank for a few months will 'split', allowing the ethanol to attack certain components (such as metal or plastic). You can solve this problem by starting the car up every month and giving it a run (however that would mean taxing it - unless you have access to private land). Many additives are available to reduce the impact of ethanol in fuel, Millers have a decent range.