No rack needed if you don't mind climbing out the hatch. I'm sure it will do fine on the highway... till a semi goes by!
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"The most important rule in a gunfight is: Always win and cheat if necessary".
If you find yourself in a fair fight your tactics suck.
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"They may call me a rube and a hick, but I'd a lot rather be the man who bought the Brooklyn Bridge than the man who sold it."
—Will Rogers