My wife's Lexus gets that and it's at least 1/2 of what I consider a car, the Focus is a Tonka Toy.
Your wife's Lexus sells for five times what the Focus does.
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I owned a 92 Crown Victoria that got 26 to 28 highway and better than 20 in city driving and it was supremely comvortable. I have a 96 Crown police interceptor that is much faster on the takeoff than the 92 Crown due to a lower rear end ratio but it still does around 20 in town and 23 or 24 on the highway. We had cars thirty years ago that got better mileage than quoted for the Focus. In fact my older brother had a 1952 Mercury that would do 22 on the highway.
As I said, if you want better mileage for the same price you need to sacrifice emissions, weight, power, or build quality. Cars of 30 years ago have much higher levels of emissions. I remember when you could increase your mileage and horsepower both simply by pulling off all your vacuum hoses, but you would then fail the emissions test. I think you just proved my point about that by claiming that 30 years ago cars got better mileage than today's restricted-emissions cars.