Speaking of tyres, I bought an MGB GT in 2007. It was built in 1980 and received some new tyres in about 1991. Unfortunately, I had reason to use the spare (lots of tread on it) in 2008, but never changed it back. My 28 year old tyre went pop when I was driving at 70mph on the M50. We had a 360 spin and (extremely fortunately) came to rest on the hard shoulder. The car was immovable as the delaminated tread had wrapped around the rear axle and the handbrake cable.