I received an unexpected text from my Porsche dealer asking if they could buy my 2006 34,800 mile Cayman. I responded and apparently they've had a run on used sales and are in need of stock, with a high demand for Caymans.

My car has metallic black paint and has been a brilliant, trouble-free car (as was the Boxster that preceded it for three years). They are offering £17-18,000 subject to inspection and condition. As I approach my 59th birthday, I'm thinking that something more interesting, but more comfortable might take my fancy, and if I accept the Porsche offer, and add about £4-5,000, I'm comfortably into an 2008 BMW 630 Convertible.

My wife and I have had several BMWs previously (she runs a 325i M Sport) and our local dealer give a truly fantastic service. I'm very tempted. What do you think?