Did I read that these wheels have an odd offset or fit? Does anyone have a list of wheels that actually fit, or are the online wheel fit guides actually work?

 

Not sure about an odd offset, all wheels have an offset. Some cars, like the higher end XE models have staggered rims.
Sites like tirerack.com will provide results that fit your car, correct diameter, bolt pattern, and offset.
might also search Facebook Marketplace for a set of OEM Jaguar wheels.

 

All wheels have an offset. Generally within a nominal range, which is why aftermarket wheels fit a wide range of applications. As previously suggested, sites like tirerack.com can provide guidance.