No, the wheel openings are all the same, Alan used different wheels, or should I say he used the 'Span' wheels that were on the front, on the back, and some chrome items on the front.

'Span' wheels were made by Dave Wallace in Onehunga, 15 x 10 fronts, and 15 x 14 in the back, the same as used by Red Dawson on his Camaro. I still have the Span wheels, but they are a tad heavy.
The Titus cars had their fenders formed with a large die for clearance . They weren't allowed to add any metal but they could be bulged to clear the race wheels and tires.

Bruce


They look different to when Alan had the car more because of wheel size.