President Bush peered under the hood of an all-electric sport utility truck parked at the White House Friday to stress that his goal of reducing gasoline use by 20 percent over the next decade is realistic.

"I firmly believe that the goal I laid out — that Americans will use 20 percent less gasoline over the next 10 years — is going to be achieved, and here's living proof of how we're going to get there," Bush said on the South Lawn after examining the SUV and a car that had a battery tucked in its trunk.

Bush's energy proposals, made in his State of the Union address last month, include ramping up the production of alternative fuels such as ethanol made from new, non-corn feedstocks. The proposal calls on Congress to require the annual use of 35 billion gallons of ethanol and other alternative fuels such as biodiesel by 2017, a fivefold increase over current requirements.

White House aides said the sharp increase in alternative fuels and technological changes, including the use of more gas-electric hybrid cars, will cut projected gasoline demand by 20 percent over the next decade.

"We're going to be driving our cars using all kinds of different fuels other than gasoline, and using batteries that will be able to be recharged in vehicles that don't have to look like golf carts," Bush said after meeting with business leaders and scientists who believe there is a market for automobiles that use high-tech batteries.

The hybrid car that Bush inspected had a high-power lithium-ion battery made by A123 Systems of Watertown, Mass. It can power the car for about 40 miles and recharge in five hours. The white truck, made by Phoenix Motorcars Inc. of Ontario, Calif., has a range of 130 miles and can be recharged in about 10 minutes with a rapid-charging unit or trickle-charged overnight with its onboard charger.

"It's the same thing you plug your electric dryer into," said Bryon Bliss, vice president of sales with Phoenix Motorcars.

"My wife, she gets out with our kids during the week and I swear she could drive all week on this vehicle on one charge. She goes to the grocery stores, go to the zoo with the kids and such, but she doesn't go that far," he said.