I asked my dealers parts people about pricing winter wheels and asked if they new if they HAD to have TPMS sensors fitted to prevent other systems being disabled when the ECU reported a dangerous tyre condition, as would be the case if winter tyres were fitted without sensors.
I was given the price for the wheels, but my email was given to the service manager, to reply about the sensor issue.
No reply for a week indicates, either a lack of interest in customers or more likely a lack of knowledge about the cars, and desire to learn about them.
I have had a couple of issues with this service department, but great service from the sales team and the parts department.
Even a reply saying it is being looked into would suffice, it will be a very common enquiry come the Autumn I expect.
It does appear that the dealers in general do not seem to know very much about these cars, so don't believe everything they tell you. This forum is a great resource which they would do well to visit.