I went on a quest a few years ago to add the 1/24-25 '30s era kits to the collection. I really like the Monogram kits, decent parts count, faithful lines. The MPC kits are kind of fiddly but you can end up with a nice replica. The AMT Model T's are also very nice, even tho their from the teens and '20s. The Heller kits are a little quirky (read French) but offer cars that no one else does. The Johan Gold Cup series are especially nice. Here's a few I've built.