I am just in the process of going through the Plus Six for its long tour of France in the summer. The tyres are OK but coming up to 5 years old, so I am going to replace them. The factory fitted tyres are Avon ZZ5 and the car has handled well on these, but it appears they are no longer available. The rear tyre size is 245/40R18 97Y Front I believe are 225/40R18 92Y. These are for the Speedster wheels.
Just wondered what tyres are now being fitted by the factory on the later Plus Six and what owners think of them. There is a fair choice for tyres available and some good makes, but I see a lot of the highly rated tyres are now showing as reinforced for the extra weight of electric vehicles and I would not have thought these are that good for a light weight car such as the Plus Six.