Ford and Chevrolet FAT Census Number clashes

[David_Hayward (RIP)]

This is a weird one! Bart's HMVD P.42 has a photo of a Chevrolet C-GT with Census Number H5558307. We know it's a Chevrolet because it has the relevant badge, and the guard support irons. However, it's slap bang in the middle of what the Census listing states is H5558176 to 5558375 which covers FATs to S/M 2546, but these are FORDs! So, was the Census listing wrong, or what? H4546495 on the same page is in the usual Chevrolet S/M 2020 and 2028 series.