In summary OE is :
SVR and R575 are 305/30 and 265/35 20
All others are 295/30 and 255/35 on 20 inch wheels.
I believe, both these 'wider wheel' models have basically the same running gear, so the wheel offsets will differ from the other F type variants.
Jaguar have added to the confusion by re-using model designations over time. The 'S' originally denoted the V8 version and this then changed with V8s becoming the 'R', alongside some V6's then assuming the S designation! Lately, we now have the 'R' label re-used for only the latest top V8 model (albeit with the 575 naming alongside) in place of the discontinued SVR variant. The other current V8 is known as the P450.
Perhaps JLR see this as a future specialist subject on Mastermind, it's complicated enough
.