The Lightyear 0 edges out the Mercedes-Benz EQS and Tesla Model S when it comes to aerodynamic efficiency.
This efficiency drive extends to the aerodynamics where Lightyear was able to achieve a drag coefficient of 0.175 Cd, a record low for a production-spec vehicle. The result was verified by independent testing at a wind tunnel in Germany.
The next closest cars are the Mercedes-Benz EQS and Tesla Model S, both with a 0.2 Cd rating. Mercedes earlier this year also showed theA low drag coefficient is important for EVs as a lower figure means less energy is used to fight drag, resulting in more range. According to Lightyear, around 60% of the energy used by an EV at highway speeds is to overcome air resistance.
A low drag coefficient is also particularly crucial for the 0 whose roof-mounted solar panels, in the right conditions, can help the car continue coasting at highway speeds without the driver having to press the accelerator. The 0 features a 60-kilowatt-hour battery which Lightyear claims will deliver a range of 388 miles on the WLTP test cycle used outside the U.S. This should still result in more than 300 miles on the stricter cycle used by the EPA.Also aiding the efficiency are tires that feature low rolling resistance, as well as in-wheel motors designed with efficiency in mind. The car has a claimed efficiency rate of 10.
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