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Foam Car Floats -- and Gets 100 MPG
Lon Ballard's entry for the Automotive X Prize competition, the Spira4u, is a two-seat, 300-pound foam car that floats like a boat and gets 100 miles per gallon.
- Published3 Images
Foam Car Floats -- and Gets 100 MPG
Lon Ballard's entry for the Automotive X Prize competition, the Spira4u, is a two-seat, 300-pound foam car that floats like a boat and gets 100 miles per gallon.
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- Foam Car Floats -- and Gets 100 MPG
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