Online I found statistics for 2006. In this year, the number of registered motorcycles was 2,409,363 whereas the amount of cars was 792,373. I do not know if this number includes public vehicles known where there is a miniature bus powered by a motorcycle welded in the middle or a sidecar that seats four to six passengers.
There are many motorcycles with a welded attachment on the side like a flat bed for delivering merchandise. I have even lately seen what looks like a small delivery truck from the rear and once you see the front, it has a motorcycle seat and handlebars and powered by a motorcycle engine.
Besides these modified motorcycles, many times you see a normal motorcycle with anything imaginable being transported. I have seen a rider, facing the rear, holding a large TV on his lap.
Thanks to a friend of mine, he allowed me to use some photos he has collected over the years showing a normal motorcycle delivering many different items. As you might noticed, not all or maybe any are from the Philippines. Many are from Viet Nam, China and other Asian countries.
I know this is not one of my in-depth and thoughtful observances, but something I hope you will enjoy.