This guy can get 59 MPG (4L per 100km) in a Plain Old Accord 
The art of hypermiling. 'As we're driving out of the parking lot, Wayne comes to the top of a small hill and tells me he's doing a fas. "What?" I ask. "That's a forced auto stop," he says, which is putting the car in neutral, turning off the engine, and gliding. It's illegal in some stateswith the engine off, you can lose your power brakes after a few pumps, and with older cars, you can lose your power steeringbut it's a favorite driving tool of many hypermilers.'
http://www.motherjones.com/cgi-bin/print_article.pl?url=http://www.motherjones.com/news/feature/2007/01/king_of_the_hypermilers.html
The art of hypermiling. 'As we're driving out of the parking lot, Wayne comes to the top of a small hill and tells me he's doing a fas. "What?" I ask. "That's a forced auto stop," he says, which is putting the car in neutral, turning off the engine, and gliding. It's illegal in some stateswith the engine off, you can lose your power brakes after a few pumps, and with older cars, you can lose your power steeringbut it's a favorite driving tool of many hypermilers.'
http://www.motherjones.com/cgi-bin/print_article.pl?url=http://www.motherjones.com/news/feature/2007/01/king_of_the_hypermilers.html
