"Lego" cars used to be really common. Old Hondas were exactly like this, which is why they had such a cult following in the 90s. You could build up a Honda using parts from pretty much any other Honda.
This also contributed to their popularity among thieves.
I got 375,000 miles out of 1986 Honda Accord. I think one time I went almost 5 years where the only thing I did was change the oil. (but, I drive like an old lady, slow starts etc.)
My newbness (or age) is showing. I wish I got to know these. And I believe it might come back since production may distribute closer to people (3D printing for non mechanically challenged parts)
This also contributed to their popularity among thieves.