Whether self-serviced or dealer serviced I would not follow VX service intervals which, unbelievably for a performance car, are annual or 20,000 miles whichever comes first. Same as the bog standard Corsa.

I would be looking for annual/10-12,000 mile intervals and a full VX history.

I'd be using 10,000 miles / 12 months for a bog-standard Corsa, half that for a performance car.

The 20,000 miles /2 years servicing is a gift to the leasing companies who get rid after 3 years anyway.

The best place to sell a home-serviced VXR or similar is probably via one of the forums or owners' clubs, where there will be plenty of similarly minded petrolheads who won't be so offended by the lack of stamps. That's particularly true if the car has been modified and isn't original anyway. Those guys will be able to tell at 100 paces whether the seller knows what they're doing or not.

The best place to sell a home-serviced VXR or similar is probably via one of the forums or owners' clubs, where there will be plenty of similarly minded petrolheads who won't be so offended by the lack of stamps. That's particularly true if the car has been modified and isn't original anyway. Those guys will be able to tell at 100 paces whether the seller knows what they're doing or not.

I'd go further - on an enthusiasts forum you'll probably do better if it is owner-maintained than franchised dealer who are frequently called out for incompetence.

This is exactly what I'm hoping when I come to sell my owner-maintained VXR. I'm the second owner, it's bog standard and only done 36K.

I had my MGZT 190 garage maintained one occasion.....never again! I know exactly what main dealers are like!!