Obviously price is an important factor so I'll be looking at cars under £20k.
Year, any. Though my budget limits me to the earlier ones (which is fine).
Mileage, I'd like under 60k though service history and finding a cared for example is more important.
Service history would have to be pretty much perfect, though I don't mind some 'specialist' servicing as long as I still have the option of buying the Lexus warranty I hear so much about on here.
Number of owners. Again, finding a car that's obviously been looked after is top of the list but thinking into the future, if I bought a car making me the 7th owner, how much more of a problem am I giving myself selling it (when GSF's become more affordable)?! So ideally I'm thinking 4 previous.
Colour, any, though I'd prefer the black interior as I'm not sure I could cope with worrying about people marking the light leather seats :)
I am serious about buying one but I have time on my side, so no probs waiting for the right one to come along.