The coefficient isn't what matters; it's CdA (coefficient of drag times frontal area). (And what it matters for is efficiency at highway speeds.) Like, my Kia EV9 has a Cd of 0.28, but the frontal area of a schoolbus. My mi/kWh at highway speeds is much worse than what an electrified Camry with a 0.36 Cd would get.

Something the size of a Camry would be totally fine as an EV. Lucid Air is approximately this shape and is a great EV.

(And at lower speeds, drivetrain and tire friction become bigger factors.)