1,200 km is about twice as much as a Tesla Model S can travel with the same amount of power.
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The EQXX's average speed was slightly lower at 83 km/h. Perhaps because the highways were closed at the start of the journey, and the team used the air conditioning for 8 of the 14.5 hours of the trip.
Once the car reached Silverstone, Formula E driver Nick de Vries got behind the wheel and drove it for another 11 laps around the racetrack. He drove the EQXX to a top speed of 140 km/h.
About 117 solar panels are installed on the roof of the EQXXpanels, but they are not connected to the power unit - instead they charge an auxiliary LiFePO4 battery. The latter powers the light bulbs, infotainment system, fans and other devices in the cabin. Mercedes-Benz estimates that under ideal weather conditions, solar assistance adds a maximum of about 25 km per day.
The car weighs 1750 kg - less than halfwhat a Tesla Model S weighs with a similar battery capacity — thanks to weight-saving efforts in everything from silicon-rich battery anodes to carbon-reinforced sugar cane composites and forged magnesium wheels with Bridgestone ultra-low rolling resistance tires.
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