Det. Tim Bayliss: Why do you think that this kid would be riding around in Burger's white T-Bird when that was the easiest way to link him to the murder? Det. Frank Pembleton: I don't know, 'cause... crime makes you stupid? Det. Tim Bayliss: Can I quote you on that?
It's so you can make your truck more fuel efficient so you don't have to sell it and buy a Tesla to save gas money.
Not sure it'd help much if any but okay. Tests show the wind swirling in the bed makes for an effective buffer and smooths the flow over it all. That's why tonneaus and leaving the gate down don't do anything.