Photo Credit:Fair Use [17 U.S.C. § 107] Lucid's Air Grand Touring proved exceptionally efficient, maintaining class-leading range even at 75 mph.

How Does Speed Affect EV Range?

28 Jul 2025 | Abstracted from Car & Driver

Car & Driver's real‑world testing confirms that electric vehicle range drops sharply as highway speeds rise. Above ~75 mph, EVs fall well short of EPA numbers, with efficiency losses increasing non‑linearly. Data and driver reports show aerodynamic drag dominates power use at speed, offering substantial range gains by slowing down. In many cases, reducing speed by 5–10 mph can boost range by around 10–20 %.

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