A modified General Motors Chevrolet Equinox called the Moovada gets 35 mpg instead of 17mpg. The Chevrolet Equinox 2006 is a midsize SUV that weighs just over 2.5 tons and claims 19mpg highway and 25 mpg in city driving It seats 5 people Pricing is MSRP $21,400 and invoice of $19,945.
A non-hybrid ford escape weighs 4120 pounds and gets 22mpg city/25mpg city It is about $1000 cheaper than the equinox.
A honda CR-V 2006 is about 3300 pounds and gets 23 mpg city/29highway
It is also $1000 cheaper than an Chevy Equinox.
A highly rated SUV that seats 7 people, 3300 pounds, and gets 24 mpg city and 30 highway with a base model that sells for MSRP $20,300 is the 2006 Toyota Rav 4
So if you want most of the fuel efficiency benefits of Moovada right now then buy a 2006 Toyota Rav 4. Then buy folding electric bicycles to allow you to drive your SUV less. It could allow you to use public transit for many situations. This site has discussed folding electric bicycles before
Here is a comparison of different hybrid SUVs that are available now or will be very soon
Ford Escape which is in production now and claims 36 mpg highway and 31mpg in city. The Ford Escape is the highest mileage SUV that is below $28000 at the time of writing.
The Mercury Mariner costs $27,800 and gets 33 city/29 highway
More on hybrid car technology is here