Quoted from Slugmeister:Chevy HHR-Never tried but with the seats folded down it would fit.32MPG
Nope, won't work. The backbox won't clear the top of the lift gate opening. You can only get a pin in about 3/4 of the way, the backbox wedges against the gate opening, then you have to tie down the lift gate. How do I know? I did it once, never again.