retiredyank's Tamiya recommendation is good then.
Tamiya German WW2 tanks in 1/35 build up to be about the same size as a 1/24 - 1/25 scale car. 
True, there are a few more parts than the model cars that you remember but these parts are without a lot of flash and seam lines to clean-up. And the parts all fit well. 
Tamiya's military armor in 1/25 can get too pricey for the product. The 1/35 kits from the 1970's and 80's are affordable and available. 
Welcome to Kitmaker Network