Great question. I’d estimate the odds of winning our car were orders of magnitude better than any organized lottery.
We had a lot to learn about successful execution on the marketing side so the actual number of entries was well less than 100k.
A properly motivated individual may be able to automate finding first-timers like us, and entering via sending postcards, and actually have an excellent chance of winning.
Reminds me of Lazlo in “Real Genius” ;)