Spire Motorsports says JGR has failed to show that its former competition director brought race-car setups to the team.
An independently tested 48-volt module maintained 97 percent of its amp-hour capacity after being held at that subzero temp for five hours.
The former ARCA driver says Daytona and Talladega demand skills that can't be learned in a movie or a handful of test laps.
Dave Marcis won the 1975 Talladega 500 by 29 seconds after a fuel-strategy battle left only two cars on the lead lap.
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