Hi Andy,
Did you hold your strat against the car in the same light?
One of my neighbours has a Renault Capture in kinda Ocean Turquoise ( Fender colour) ,when I hold one of my strats(in house it looks the same as the car) against it they differ so much..... the strat looks old Lake Placid Blue in daylight...which it is!
I've seen Fiesta true the years on cars Hyundai,Ford and lot more....when I'm holding my original Fender 60's custom colour card next to it....always wrong
Cheers Rob