to clear out the photo for those questioning as someone who was worked with alberta MEOs (but not BC coroners)
imo its a body, in a white body bag, in a white transfer sheet, because they didn't want to take the gurney up the stairs. the head is towards the left, and the feet are flexed and towards the right. the body is possibly in rigor. its best practice to not break the rigor prior to the autopsy/external exam. im not sure what the black things are...maybe black bagged evidence/drugs/ID etc placed on the body so you don't have to make multiple trips.
its very common to use a modified SUV. as you can see in the photo, its modified with no back seats and likely a clear plastic shield separating the front. ambulances are high in demand and don't transport people already pronounced dead. if hes already in rigor, no point attempting to revive. its mostly funeral homes that use the classic hearse now, and then again many use modified SUVs because its cheaper/less attention grabbing. businesses don't want you to advertise via your vehicle that one of your patrons died.