gas prices. national average is $2.10. gail. in one town in texas, $1.47. abc s clayton sandell is there. the huge sign heralding $1.47 gas is drawing a huge empty tank crowd to tomball, texas, for one of the lowest, if not the lowest anywhere. good news for perry. his limo company uses two stretch hummers. you get like seven miles to the gallon. filling one hummer used to cost around 100 bucks. now he can fill both for that. what is it like to look at a number that low? good for the bank account. that s for sure. reporter: good for a lot of bank accounts. the government estimates the average household will spend $750 less this year compared to last. but at the detroit auto show, more fuel efficient cars are taking a backseat to gas guzzlers. ford s ceo tells abc s rebecca jarvis the ups and downs are a key challenge for automakers. consumers are smart, they
gas prices. national average is $2.10. in one town in texas, $1.47. abc s clayton sandell is there. the huge sign heralding $1.47 gas is drawing a huge empty tank crowd to tomball, texas, for one of the lowest, if not the lowest anywhere. good news for perry. his limo company uses two stretch hummers. you get like seven miles to the gallon. filling one hummer used to cost around 100 bucks. now he can fill both for that. what is it like to look at a number like that? good for the bank account. that s for sure. reporter: good for a lot of bank accounts. the government estimates the average household will spend $750 less this year compared to last. but at the detroit auto show, more fuel efficient cars are taking a backseat to gas guzzlers. ford s ceo tells abc s rebecca jarvis the ups and downs are a key challenge for automakers. consumers are smart, they