Hi All 
In case anybody would like to know my FIRST 09 Mazda 2 Sport was the 1.5 petrol model.
Gorgeous car but fuel consumption nothing like expected - normal running about was around
32-35mpg and trying to drive economically at that! I expected more?
After ONLY 2 weeks complained to dealer who said I must let it "loosen up" and to try getting
into high gears asap, coasting to lights, soft acceleration, etc. - I already did that! To be honest
I was BORED with trying to save fuel. But persevered for the next 3 months. Could stand it no
more and complained again - they diagnosed the car and found NOTHING wrong? (Over 2000mls).
The best I achieved was on a leisurely run to the coast and back, about 170 miles, no
motorways or anything over 60mph - my consumption averaged just a touch over 45mpg.
I took the bull by the horns and found myself a Mazda 2 1.6 diesel and guess what?
THE VERY FIRST TRIP OF ABOUT 25 MILES I AVERAGED 90 (NINETY) MPG!!!
Still my best effort because I was driving it so light footed and economically.
Even running around urban I can ALWAYS get over 55mpg and usual is about 65mpg.
If I do the same trip to the coast and back it is typically around 75-85mpg!
HEAVEN - this is the most economical car I have EVER known personally.
I can now drive all sorts of roads and drive with a bit of fun and still manage
60-65mpg. Although I have a small problem with the cooling fan at the moment
I have to say I still love this car and would not swap it for anything.
I honestly think over the coming years that the extra cost for the M2 diesel model
will be recovered by the pleasure and relatively low running costs.
Hope this is of interest to someone? Ttfn - Michael 
P.S. When I "swapped" out the petrol version for the diesel the only added
expense was basically the price difference between versions, so lost nothing!
All readings from trip computer - personally I think real consumption is a touch higher?Sorry - just realised there is a thread for DIESEL consumption?
Can a moderator move this post to the correct thread by any chance - Thanks
Here maybe: http://www.mazda2forums.co.uk/forum/index.php/topic,132.0.html