Useful Pic FG. It looks like the Dixon proportions are not too far off compared to the others.
@Grimm - I emailed Dixon about their car. According to them, their car is closer to 1/48 scale, so it would go better with the 1/43 diecasts. The Dixon car is a common 1920s car - the Willys Knight. But this car unfortunately is very hard to find as a diecast model. The diecasts are only of the luxury or sports models, and it is very hard also to find a normal Ford Model A Sedan in 1/43.