Well, i found it, a diesel walkbehind commercial mower! I am also in the import business. For winter months i work online selling imported goods. So i went to a board i normally go to find manufactures in china and searched for lawn mowers. TONS of companies have riding mowers, tractors, even bulldozers made in china. I did find one company that has basically copied a scag, bunton, lesco, etc....belt drive walk behind. It's a 14.5HP 48" deck with your choice of a gas or diesel motor, haha. Check it out here...Diesel Walk Behind . Now i know that everyone is just going to run out and have one shipped over from china, haha.....but.....a small diesel motor on walk behinds i think WILL eventually happen here the way fuel prices are going. Who knows, even a diesel trimmer? A backpack model with a flexible cable shaft??? I bet that already exists too, haha. Oh well, just thought i would show you guys what i found last night.