### Comment:
If google isn't lying to me there are over 13 million delivery trucks in the USA in total, UPS alone has over 140k, but I can't get a break down on how many semis versus vehicles of this/similar size.  I think the broader implication that anyone (FEDEX, DHL, USPS, whoever) could get on the TSLA wagon is big news.

### REPLY:
If it helps your research any, UPS calls their door to door delivery vehicles 'package cars' rather than 'trucks'.

### END.