I don't mind driving in a crosswind or a headwind.  It's more work,
but my '84 can maintain highway speeds, thanks to its 2.3L engine.

It kinda sucks when I need to make time in an adverse wind, because
the fuel economy goes into the toilet.  The last leg of my recent
journey, when I was on a schedule, I got 14.1 mpg, down from 22.1 mpg
over a much more enjoyable leg four days earlier!

http://www.fuelly.com/driver/sbw/vanagon/log