What is the optimal tire size for a Toyota GR86?

I recently purchased a Toyota GR86 and am wondering what the best tire size would be for optimal performance. I plan on taking it to the track and want to make sure I have the right tires for maximum grip and handling. Any recommendations?

For optimal performance on the track, I would recommend upgrading to a set of wider tires. A good option would be 225/40R18 for the front and 255/35R18 for the rear. This will give you better grip and stability while cornering. Make sure to also choose a high performance tire from a reputable brand for maximum performance.

If you plan on doing any off-roading with your GR86, I would suggest going for a taller tire size such as a 235/40R17. This will give you more ground clearance and better handling on rough terrain. However, keep in mind that this may sacrifice some performance on the track.

For a more budget-friendly option, you can stick with the stock tire size of 215/45R17. This will still provide decent performance on the track and good overall grip and handling for everyday driving. Just make sure to choose a high quality tire from a reputable brand.