I don't care what anyone says - modern bias-ply tires ride a lot harder than the old. I used to drive on the old, and whilst I don't disagree with tramlining on cracks, taking a set even in moderate weather after being unused and loss of ultimate grip (though I have had 215/75R14 Toyo steels...
Ah Henry II, the second saviour of the Ford Motor Company, and Clara, Henry I's wife threatening to sell her voting stock if he didn't hand over the reins to II instead of giving control of it to Harry Bennett as he'd wanted!