100 miles per gallon or bust!

[Fly2e]

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Carmakers are already charging batteries, tuning engines, and inflating tires to get ready for DARPA's Progressive Automotive X Prize contest,
which will deliver $10 million to the winner whose car can exceed 100 miles per gallon. At the New York auto show last week, the Defense Advanced Research Projects Agency unveiled Progressive Casualty Insurance as the sponsor of one of the most interesting auto contests to date.

We'll take our second look at some of the competitors. (The first batch is here.) The cars in this gallery were chosen to show off some of the more interesting concepts and designs. Contestants range from small garage owners to companies like Tesla looking to find a niche in the luxury car business.

FuelVapor Technologies of British Columbia developed a three-wheel car called the Al

[expat]

I don't want to be picky, but don't all internal combustion engines run off "fumes", after all, fumes are still vapor and it is an air vapor mixture that is sent to the combustion chamber.

Matt

[C]

I now enjoy having a car which in normal driving is averaging 55mpg..

[The Ruptured Duck]

I don't want to be picky, but don't all internal combustion engines run off "fumes", after all, fumes are still vapor and it is an air vapor mixture that is sent to the combustion chamber.

Matt

its really a mist.  its when you get vapors combusting do you get knock/ping