Thanks so much for the warm welcome and considered responses
I'm with directline currently for the Panda (£250/yr), got quotes for 500 lounge just now, 1.2 comes out at £310, TwinAir £360, so not a massive difference, albeit enough to write off the whole VED saving
jrkitching: you read between the lines pretty well! I almost universally drive the Panda ("Sue") like a saint, not to the point of obsession but I don't like seeing the trip avg go below 50.... (ok may be that is a little obsessive!) and you are right, sounds like temptation to use the extra urge of the TA could be too much and get you into the 30's MPG range easily! I would imagine the 1.2 would drive much like the Panda, i.e. even if you thrash it, its not quick, so you may as well drive efficiently instead. I'd still be really interested to see what the TA would deliver driven like a saint though! I have a 2nd car for thrashing that only delivers around 24mpg at the very best

that I take out on weekends only, I get it out of my system then and not on my commute. I'm also somewhat open to the idea of enjoying the TA sometimes rather than being 100% economy obsessive
Point taken about the cost too, I
know in effect I could have a Panda for half the price but I've never driven or even sat in a 500 so I'll take the risk and won't take your advice to cancel the test drive, cost isn't everything for me, I need to see whether I think the premium for a 500's style (and fewer doors and worse practicality!) is worth it, of course rationally
everyone should drive a Panda if it was just a value for money issue! I've evangelised this myself fruitlessly to many frends who've bought KA's 107s and the like!
pearce_jj: I saw the mylife panda at 7k too, pretty good deal, no fiat finance on that car though?, so I'd be on bank rates of around 10%, still much cheaper overall than a 500 obviously, but I do kind of fancy a change

afaik no Pandas have blueandme?
I'll see what the dealer can offer on both Panda/500s and go from there
pK