NewbieBrigade, keep in mind that the Micro is 1/18 scale, while the others are 1/24; for more Micro info, check out
http://yourmicro.com 
I think you must have misread the wheelbase on those models, 194mm would be more like 1/10 scale. You should be able to find plenty of models that will fit the 1/24s, plus ABC make a ton of bodies (search the Forum and you'll find a link to their page listing all of them).