But believe it or not, BMW OEM cargo boxes are priced consistently with aftermarket options from good brands. There are three sizes, a 320-liter that lists for about $700, a 420-liter one at about ...

As you've likely guessed, this comes at a significant price premium over OE and OEM parts. Here's some inside baseball: Volkswagen doesn't make that VW-branded coolant hose you just bought.