I had a gripe about this some time back. And its not just suzuki either...
To have ford focus commercials that claim "great fuel economy", and then state 32 MPG highway in the fine print on the bottom, or saturn commercials that ask "whats the point of fuel economy without power", and then show that it has 140 hp and 32 mpg are absurd.
My saab has 175 hp and is 34 mpg highway. The corolla has 130 or so hp, and is rated at ~41 mpg highway.
Maybe its time for the EPA to recognize that even if a tiny 4 cyl car puts out a little extra CO or NOx, its minimal in then of these cars, compared to one emissions exempt big 8 or 10 cylinder SUVs.
IMO, only COMMERCIAL sale vehicles (with adequate proof) should be exempt from emissions regulations, and the degree of regulation should be tiered based upon engine size and vehicle mass, so a car like the focus can claim in a TV commercial that it gets good mileage, and have a 40+ number displayed.
JMH