Spare Tire Hold down

I have never seen a rally wheel car with an original rally wheel spare. I guess you learn something new every day - I'm not sure that I would give up the space. I use a thinner
I have never seen a rally wheel car with an original rally wheel spare. I guess you learn something new every day - I'm not sure that I would give up the trunk space. I use a thinner tire (78 profile) on a original steel plain rim that is the same height as the rest of the tires.
Hi. In my 1970 340 Duster, the spare is not a rallye wheel. It is a black steel 5.5" rim, with an E70 14 Polyglas tire. The extra width of the rim and tire necessitated the use of the longer hold down bolt. The masonite tire board sits very high too. The trunk mat does not sit flat at all.