Real Highway Efficiency Comparison: Lightning SR vs. Silverado EV

[Nklem]

This weekend I was ferrying my Lightning South to be sold. Anyway, having the perfect opportunity, I decided to do a true highway efficiency test between the two trucks. My Son (very much smiling) driving the 4WT and me with my Lightning.

2023 Lightning XLT SR VS 2024 Silverado EV 4WT. Ambient 55F. Climate at 70 AUTO. 1 Driver. Lightning leading (no adaptive cruise but set to 70 MPH, reduced in construction zones) and Silverado following with max distance setting.

The results were close but the Lightning was slightly more efficient. Expected since the Lightning weighs 6015# and my Silverado 8500#!!!

All numbers read from the BMS with CarScanner PRO.

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[Randall Stephens]

Not bad for 70mph on either vehicle. The faster you go the closer I’d expect all these trucks to get efficiency wise as aero is the driver at speed for mpkwh.

 

[FloridaMan655321]

It's kind of a shame you had one following the other the whole time. I'm kind of wondering if the wind turbulence created by the leading truck caused issues with mileage on the trailing truck. It would be nice to do this again flipped to see what the outcome is.

 

[MichaelCA]

I think GM's battery size is a bit overkill, price is a bit high and the weight is a bit much, but that efficiency is a lot higher than i expected. a ~160KW Lightning/Silverado variant would be something great.

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