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Just getting back into the photography of the RC cars again, any further tips for freezing car in focus whilsts still having the wheels blurred and obviously spinning?

Depends what you mean by further I guess. I don't know what you already know but I would suggest selecting a moderately fast shutter speed and practice panning (move the camera to follow the car).

To freeze action one would normally choose a high shutter speed but that may freeze the wheel motion too.

The spinning wheels would need a high shutter speed to freeze them than the car I guess as they are moving faster so you may not need to pan but panning also adds the benefit of blurring the background.

This was a double post. The one everyone was answering is here

Oh well, at least I gave the same answer!