ABC made a 1/12th scale car in the mid 80s called a Spark that was 4wd chain drive, as well as a 2wd car that had 4-wheel independent suspension called a Superhero. Cool stuff, but relatively fragile.
AYK also had a car dubbed "Quattro" that was also 4wd chain drive.
There were more than a few different kits that tried 4wd.
Nothing is always.
Everything is sometimes.