Why can't I breakdown Mercedes E class to 4matic wagons?

If you do your select the make, model, year and location. Once your list of car pops up scroll down to the ( trim ) section on the left of the page and deselect all models except for the 4matic wagon and it will only show that model. Just keep in mind that not all cars are properly listed and you could miss out because of that, also your avialible cars will be limited since there doesnt seem to be many 4matic wagons listed so you make have to expand your search area. Good luck.