Speed Demon (car)
land speed racing car built in 2010 by Ron Main for George Poteet
Speed Demon is a land speed racing car built in 2010 by Ron Main for George Poteet.
In September 2010, George Poteet made a serious attempt to break the flying mile and flying kilometer record for piston-engined wheel-driven cars. Speed Demon is powered by a 299 cu in (4,900 cc) aluminum block 'Hellfire' V8, built by Kenny Duttweiler. Their effort was thwarted by a number of parts failures. The team stated their intention to return in 2011 to set a record over 450 mph (724 km/h), and at the 2011 Bonneville Speed Week, Poteet achieved 426 mph (686 km/h)
The Speed Demon then made "the fastest piston engine pass ever", turning in a two-way average of 437.183 mph (703.578 km/h). (Because this was not done within the two-hour limit demanded by FIA, the record is not considered official.)
In 2012, Speed Demon set an official record at 439 mph (707 km/h).
Speed Demon was displayed at the 2018 Detroit Autorama.
Poteet intended to attempt the absolute record for wheel-driven cars, currently held by Don Vesco’s Turbinator, but died on July 16, 2024. Poteet was replaced by Chris Raschke, who drove the car until his death on August 3, 2025, in a crash during that year's Bonneville Speed Week.
This brief starts where responsible research should: with the source description of “Speed Demon (car)” as land speed racing car built in 2010 by Ron Main for George Poteet. Everything that follows is an evidence route, not borrowed authority.
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Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated May 27, 2026. The linked authority identifier is Q60767721. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2010, 2011, 2012 and 2018.
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This entry incorporates text from “Speed Demon (car)” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.