Yes I think you have read correctly. Everything about the car I am considering is good - except the 19” wheels. I just think it will give me too hard a ride (as well as being more expensive to replace).
I was hoping that fitting a smaller tyre with a compensating deeper wall would be acceptable. The Oponeo tyre site seems to suggest that fitting the 18” tyres to the same rim is within the allowable tolerance. I have clearly misunderstood the information on Oponeo.
Thanks for your comment and advice. My search goes on for a 184bhp Quattro manual !