Thank you for the replies, I will be going very easy on the vehicle with the weight on the back early on in its life...it is great to hear that others have towed responsibly with new cars, and no major issues.
In the end I suppose it all comes down to a little bit of sympathy for all the new parts to bed in gently.
On a separate note, thanks for the tip Peter, I will be looking into a scanguage as soon as I get the vehicle sorted for towing. S4 sounds like a safe bet, particularly when new.