Sizes vary by wheel option and model year, and many 370Zs run a staggered fitment. Common examples include 225/50 R18 front with 245/45 R18 rear, or 245/40 R19 front with 275/35 R19 rear. Use the reg lookup or check your tyre sidewalls to confirm.
If your car is staggered, you will need to add the front size and the rear size separately (or use the registration search if it supports both). Replace like-for-like sizes on each axle, and avoid swapping front and rear sizes as it can affect handling and stability systems.
Yes, you should fit tyres with at least the manufacturer-recommended load index and speed rating for your 370Z. These ratings are shown on the current tyre sidewall and in the vehicle handbook, and using the correct ratings helps maintain safety, insurance compliance and performance.
It is best to keep the same brand and tread pattern on the same axle, especially on a performance car like the 370Z. Mixing can change grip levels and steering feel. If you must mix, match size and ratings exactly and fit the pair to the same axle.
The UK legal minimum is 1.6 mm across the central three-quarters of the tyre, around the full circumference. Many drivers replace performance tyres earlier (often around 3 mm) to maintain wet grip and shorter stopping distances, particularly through autumn and winter.
