It's also being played back at the wrong speed.

I've seen a lot of these before. AMC utilized the Commpak film cartridge system for a while, but GM and Chrysler used the Technicolor Cartridge which I believe this is sourced from.

Some of the Chrysler ones appeared on Youtube about 10 years ago, and the announcer sounded like this. Youtubers like Osborn Tremain have found better ways to play them back and have the pitch adjusted correctly. While the announcers' voice is relatively deep, it's not quite Darth Vader like it is here.