Say what you will about the Grumman LLV, but every one of them you see on the road today is at least 30 years old, and some could be pushing 40. (The similar-looking Ford-Utilimaster FFV is ~25 this year.) As uncomfortable as it must be to sit in one for hours on end (I never had the privilege myself) you've got to respect their longevity.
Here's hoping these new trucks make it to the 2050s and beyond.
Here's hoping these new trucks make it to the 2050s and beyond.