My car is only 3 weeks old so the wheels are fine. However, I notice that the centre caps are already slightly off color compared to the wheels.

My MR2 Roadster had a problem with the wheel lacquer bubbling and was a known fault.

Toyota replaced the wheels under warranty.

If the lacquer is coming off then I would expect it to be sorted out under warranty, unless it has been caused by something you have done (cleaning chemical etc...).

Go speak to your dealer.

Regards,

Andy