I was out in the car earlier, got it nice and cool after a thirty minute drive then parked under cover at the shops, was gone for only ten minutes and by the time I got back it was already boiling again... A white car... Not sure it makes that much difference...
A LOT of sense, yeah... Silver would be my compromise position...
TBH it makes very little discernible difference, the white car seems to be just as hot as the black car was when it'd been out in the sun...