My 2014 Jaguar XF 3.0 is not lowered, a certain tire shop I use told me a 295/30/20 would fit without any issues, anybody have that size on their rear?

 

The XFR-S runs the 295/30/20 tire size as standard. There will be no issues fitting that size tire but make sure you have correct wheel fitment and alignment if you plan to go to this tire size on the back.

 

Babyglen, please keep us in the loop on how things turn out if you go this route. I believe the XFR-S wheels are 1 inch wider than the XFR, so I'd be curious if the traction control system gets confused.

 

Tire width is not the problem. The diameter is.

What is the diameter of your front tires?
What is the diameter of your rear tires?

The S Type will be thrown into limp home mode if there is more than a few percent difference in the OD's.
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Front 20x8.5
Rear 20x10