Putting old or contaminated petrol in a car needn’t be catastrophic, but in the Golf’s case it was. With 37,000 miles on an 07 plate, it was a tight, solid little car before I accidentally wrecked it. Someone offered £300 for scrap, and I was about to sadly take it, when a pal pointed out that one second-hand Golf door alone costs £300 from a scrapyard.