Originally Posted by suss6052
I didn't say that it was an invalid comparison between their old car, just commenting on how if you are constantly shifting through 3rd and fourth, or riding in either of those gears for an extended period of time it is likely that your efficiency wouldn't be nearly the same as the old car due to the shorter final drive in those gears. I.e. stop and go traffic 0-40 and back over again in short order can decimate the fuel economy and might partially explain the discrepancy. Obviously I don't know the conditions under which they struggle to crack the same mileage as before.
However they are currently 2 mpg under what they used to get in the Mazda 3 under what is probably the same conditions. So I'm not sure how to explain that.
I see your point. I think that's probably pretty much accounted for in the city test cycle which is reflected in city and combined ratings.