We range-tested a rear-wheel-drive 2023 Cadillac Lyriq twice; once at seventy miles per hour and then again at eighty miles per hour, to see just how much range would be lost by going ten mph faster.
We know electric vehicles can go farther when driven slower, but just how much farther isn't always clear. So we set out to find out what the answer would be for a Cadillac Lyriq.