So here is something to think about.

Hummer H2 fuel tank size : 32 gallons
Hummer H2 Mpg: 10-13mpg
Cost of gas near my house: $3.50
Averge car driven (8000 miles per year): 22 per day.

Cost to fill Hummer H2 at $3.50 a gallon: $112
Cost to gas Hummer H2 for one day: $6.42
Cost to gas Hummer H2 for one week: $44.92
Cost to gas Hummer H2 for one year: $2335.66
Cost to gas Hummer H2 per mile: $.30

Prius fuel tank size: 12 gallons
Prius Mpg: 51-60
Cost of gas near my house: $3.50
Averge car driven (8000 miles per year): 22 per day.

Cost to fill Prius at $3.50 a gallon: $42
Cost to gas Prius for one day: $1.40
Cost to gas Prius for one week: $9.80
Cost to gas Prius for one year: $509.60
Cost to gas Prius per mile: $.06

Money saved on gas by owning a Prius rather than a Hummer H2 ($2335.66 – $509.60) = 1826.06
now this is if you only drive 22 miles per day (the average)

Frankly it should be illegal in this time of energy shortage to own a Hummer H2 or other huge SUV’s but even if it isn’t illegal is makes good finacial sence to not own one.