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Wheel offset and backspacing explained for Aussie drivers: what ET means, positive vs negative offset, how to measure backspacing at home, and legal limits.

Bolt pattern (PCD) explained for Australian drivers: what 5×114.3 and 6×139.7 mean, how to measure your stud pattern at home, and the common AU fitments.

Plus-sizing a sports car sharpens grip and steering but costs ride comfort and dollars. Here’s the Australian trade-off, the legal limits and what to check.