Very very few "normal" people know or care enough to report to NHTSA. This FB group has over 18,000 members, and I would guess (all you can do) about 80% have an engine failure. And I'm sure there are far more failures beyond this group.
https://www.facebook.com/groups/2656585844564761/
I don’t do FB, which may explain why the link didn’t open.
Perhaps you could share some details on the group of 18,000 and why you’re “guessing” that 80% of those in the group have experienced engine failures.
I can only offer anecdotal evidence. In the 1970’s-90’s, my grandfather drove a number of vehicles well beyond 200,000 miles. None had an engine failure. In keeping with that family tradition, my father followed in his father’s footsteps. Numerous vehicles, high mileage, zero engine failures.
I haven’t been maintaining the high mileage, old car standard quite as well. However, over the past 40-odd years we’ve had at least a half dozen cars that were driven to the age of 10-15 years and had an average of about 150,000 miles. One of those, a mid-90’s Volvo, needed a new transmission at about 120,000 miles. A few years later that car was sold to a friend who drove it for a number of years. Eventually she sold it at about the 18 year mark, with the original engine still performing flawlessly.
I recently spotted the 2005 VW Jetta in a parking lot, that we sold in 2019 with 145,000 miles when we bought the Clarity. The owner approached the car and I mentioned that I used to own that car. She was the second owner since we sold it and it now had more than 250,000 miles on the original engine. It had needed some repairs, as would be expected, but no engine failure.
My next door neighbor is a retired auto mechanic. My brother in law has been a professional auto mechanic for 45 years and my nephew is an auto mechanic. None of them have ever said anything along the lines of “80% of 10-12 year old cars with 200,000 miles will have an engine failure”. In fact they all drive older, high mileage vehicles and only my nephew has replaced the engine in his truck. Not due to a failure, he just wanted something that burned more fuel.
Maybe it’s just a streak of good fortune that my experience with dozens of older, high mileage vehicles has resulted in 0% engine failures.