Originally Posted by
Jill McAuley
If it's packed in the car so that it can't/won't fall over then flat or on it's side will both work fine... I did my best to situate the instrument cases so that they weren't getting hit by direct sun but in the course of driving, as the day wore on the sun's position changed and inevitably they would be - keeping them covered with a sleeping bag/jackets seemed to help as the cases were always cool to the touch underneath - it also meant that no one could see an instrument case if they were looking through the windows/beside me in traffic/at a gas station etc.. I also second the advice to always take your mandolin with you ...