Trunk Floor Liner Doesn't Handle Much Weight
 

I play in a band, and my guitar pedal board transports inside a flight case -- the whole thing weighs about 50 pounds, and the case bottom has rubber feet. I put it in my trunk the other night, and when taking it out, noticed that the feet actually slightly dented the floor liner. Looks like I will be buying a trunk cargo mat when that's available -- that may disperse the pressure just enough to avoid more indentations.

Yeah - those liners are glorified cardboard. Maybe put wider feet on your board.

Amp and guitars fit ok in the car too?

Not really...I can barely fit a guitar case and a mic stand in the trunk with the pedalboard. Don't want to load heavy stuff in the back seat and mess up all the trim. My Baja is for hauling equipment to gigs, and BRZ only for driving down to practice space...:)