Quoted from J85M:Doc could a hot wheels batmobile the same scale as the batcycle and batcopter be put on the battmobile spinner? is there sufficient room for a little over hang? I ask as my LE is back in its box waiting for my playfield and the current model is pretty poor in the detail department, would be a big improvement being able to use a 1:50th over the factory 1:64. The hallmark batmobile is definitely too big, I tried that which is a shame as its a great model.
I replaced the batmobile on my spinner with a different batmobile. My original batmobile was a flat black with black flames on it. The flames being black weren't really noticeable but I didnt like the flat black either.
My replacement batmobile was the exact same size, 80mm. But some hot wheels batmobiles are bigger. My batman66 bluray set came with a hot wheels made batmobile and its about 105mm. This website lists a bunch of hot wheels batmobiles. They all sorts of variations so you nned to measure the one you get to make sure it fits or not.
http://www.1966batmobile.com/hw.htm
My eaglemoss batmobile is about 120mm which is way too big. The 80mm size fits the existing spinner perfectly. You could go bigger and over hang it off the spinner but not by much before it would hit stuff. Might need to worry if ut would spin as well if ut got too heavy.
Hot wheels did have a 1:87 HO scale batmobile which should be smaller but I dont know how the detail looks compared to hot wheels version. Being smaller the spinner might spin differently than it does now.