According to the windows sticker, the $19,045 price is after options and a delivery charge, both of which would have been added to the MSRP of any VW Beetle "back in the day".
According to this windows sticker a 1963 beetle cost $16,500 in today's dollars.
https://www.thesamba.com/vw/gallery/pix/931335.jpg
That's 1963. A 1973 optioned, delivered, Beetle (again, the cheapest car you could buy at the time) would have been closer to $18k, much higher than its MSRP of ~$12k. Not far off from the $19k of 2023 for an inexpensive automobile. But markups vary so much from state-to-state and dealer-to-dealer you can't compare and can only use MSRP as a "good enough" basis of comparison.
$16,500 -> $19,045 is a 15.4% increase and you get airbags, a backup camera, better gas mileage, and more reliability for your 15.4%.
Also, today MOST PEOPLE are paying 3-6% on a car loan. In "the good old days" it was 10-20%, depending on the year.
In 1972: "a bank charges roughly 10 percent annual interest to lend money on a new car bought over a three‐year period. A finance company, on the other hand, charges about 11.84 per cent over a similar period." https://www.nytimes.com/1972/09/28/archives/personal-finance...
That's not, as the article puts it, "for the rich".