I've never done that well on my economy but then, I do enjoy my driving! What amazes me is that I can do a track day and get 36mpg. I suppose that's why I've not been too bothered about doing mods. You must have had low expectations of comfort and noise if you thought the Roadster was good. It's the noisiest car I've ever had and it's hardly the height of comfort, although I did manage 3800 miles around Europe last month and my 170 mile trip to the office and back is fine.
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