[SeeSac]

Not quite. They will get similar upper 20's at highway speeds. You should look into it, you might be surprised.

I looked at a real world tests. 33 at 78 mph. You should not make claims that are so easily disproved.

http://www.caranddriver.com/reviews/car/10q4/2011_chevrolet_volt_full_test-road_test

[palmer]

26 in the thread above. Your unproven claim is that 33 “blows the socks off” a Grand Marquis. The factors of momentum and wind resistance are all that matter at 80 on the highway and in that regard the Volt and Grand Marquis are about equal.