Instrument used is real acceleration meter. It is more precise than GPS based instruments. It measures acceleration 500 times in a second. Based on those measurements it calculates acceleration and speed. Shown is time needed to reach 60 mph.
Car instrument panel speed is in km/h (60 mph = 97 km/h).
Measured on same road strip in both directions to neutralise eventual influence of slope and wind.
Disclosures:
Car battery charge was around 40%.
Tires are 22".
(both could have had negative effect on acceleration)
