The Tourist.

[chrissa1]

What is the name of the 70’s film that was very like this?

[Bazile]

I think it's the way the truck is protrayed as having human characteristics - evil characteristics at that

[ToraToraTora]

yes, the driver is never shown, a similar film was made later in 1977 called "The Car", clearly an attempt to emulate Duel, not bad but no where near as good.
https://www.imdb.com/title/tt0075809/?ref_=fn_al_tt_1

[chrissa1]

Please forgive, sqad. :((