This is one of my favorite styles of writing. I have absolutely no clue what this person is talking about and have no interest in cars, yet I read every single word. I love when people have such a deep knowledge of something that they can write an essay as unique and thoughtful as this. It reminds me of Kitchen Confidential, Surely You're Joking Mr Feynman!, or any rant about British politics by David Mitchell.
The BMW car forum is good, bimmerforums.com. Pelicanpart forum is good. BMW/Porsche GrassrootMotorsports is good. General racing, falls back to bmw/porsche/corvette/mazda Miata.net is fantastic. Corvette forums are great, but I can't recall them now. Subaru Forum is fantastic, humour though is needed. NASIOC.com priuschat is great, though it goes quite different from above forums. Tesla forums are good, but I can't recall any off the top of my hand. And then landcruiser ones, wrangler/jeep ones, etc.
The more less hobby a car is, the decrease in quality in forum posts, not that a corolla is a bad car per se, or even a camry/accord. It's just, different folks for different hobbies.
Spend a week on there, and you'll learn the lingo (it's universal throughout cars, especially per car generation/period, 70's/80's/90's,etc)
Then you also have other motorsports too, motorcycles and even planes, which share the same sentiment. Pilot chat/bicker is very similar. ;)