Dougal, the brochure for the P7’s back in the early 90’s had a rim width range of 8”-10” for the 285/50/15’s. Before I purchased my 10” wheels, I had the 285’s that I bought in 1991 mounted on my 8” rims. If the dimensions are exactly the same that would open up a bigger market for these tires.
Great job on getting these produced.