JFleck, American vintage car enthusiasts and British vintage car enthusiasts in the US don't overlap much. The former group never could figure out what a trunnion or a gudgeon pin is, even after they found the tyre in the boot of the saloon. The latter group has always had difficulty with pronouncing carburetor correctly when it only has one 't', which may have stunted their ability to grasp that it has more than 2 moving parts.