Folks,I offer this up as food for thought. With today's super cars and locomotives along with top notch buildings,figures and scenery material is it not prudent we should use scale size vehicles? I think so..Why build a nice looking layout and then ruin it with out of scale vehicles? To my mind the extra cost of scale vehicles is worth the end results...Of course less detail vehicles like the cars that comes in Bachmann's blister pack could be used in the back ground. Then there is the "Fresh Cheeries" line of cars that can be found at Wal-Mart(I am sure other box stores carry them).These are HO size.