MG-R FAQs
Car alloy wheel fitment etc, offset, PCD, and tyre size available at this link
Click here
Just found this website which tell you what other cars alloys will fit
http://www.wheelfitment.eu/steekmaat.php?merk=MG&type=ZR&merk2=MG
The link below tells you effectivly how a tyre/wheel size will...