Ikea already delivers. It's difficult to imagine that they'll deliver
less when they won't have to hire drivers to do so. The robo-delivery-van won't only lack a steering wheel, it will lack a seat. I envision doors on the front, and sliding dividers that push the next delivery forward when the van backs out of the driveway of the preceding delivery.
These will not be cars as we have known them. Most people today don't like cars as we have known them, nor the cruft that has built around that. A vocal minority here on HN really likes cars, exactly as they are, and they don't want to hear about these changes. That's OK, people who want to waste money on old-timey cars will be able to do so, for at least a few decades.
If not have a steering wheel blows your mind, hold on: which direction do you think the front seats will face, in the typical robocar?
[EDIT] I'm dreaming of a time when few people buy cars, so we'll no longer be plagued with car commercials.