If that is the case, spare tyre will save the day. Of course the spare wont be identical to the remaining three tyres, but the spare will be enuf to drive to nearest shop. Besides, his lovely ride never go further than 20km from his home.
Same goes to new cars that use space saver spare tyres. Pretty common. I save a honda civic drives about 90km/hr on space saver spare tyres. Take corner like biasa only....Huiyoh....