While cruising around doing errands.....

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Uno mas....

The I picked up some plywood for the trailer deck.....

Ready to leave.....handicapped space....

C'mon, you can get more in that car. Fill it up!

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Good luck with that. I don't see any reason why it wouldn't work, other than wind resistance, and the personal safety of you and every other automobile driver and passenger between Home Depot and wherever you are going...