The transition era modelers are not only getting three new buses, but it looks like a couple of all new automobiles are also in the works. Here is what I found on Walthers new products page for October:
50317 - 1953 Ford Country Squire Wagon - Carnival
50318 - 1953 Ford Country Squire Wagon - Fern Mist Green
50319 - 1953 Ford Country Squire Wagon - Woodsmoke Gray
50320 - 1953 Ford Country Squire Wagon - Raven Black
50321 - 1956 Dodge Royal 4-Door - Two-Tone Coral/Gray
50322 - 1956 Dodge Royal 4-Door - Two-Tone Aqua/White
50323 - 1956 Dodge Coronet 4-Door - Black
50324 - 1956 Dodge Coronet 4-Door - Taxi
Here is the link to Walthers if you want to check them out yourself:
http://www.walthers.com/exec/newproducts/cr/200810/VehiclesI also checked out Classic Metal Works to see if they had any information listed, and I could not find anything for the 1953 Ford wagon or the 1956 Dodge. They do show a CAD drawing for the 1950 Dodge Meadowbrook that was announced awhile back.
http://www.classicmetalworks.com/Carter