A misleading article, pure nonsense from some marketing department, or a factoid your dad got wrong back in the day — the next thing you know you're surrounded by automotive misnomers.
10.) The Boxer/Flat Engine Conundrum
People often call any flat engine a boxer, but that's not always the case. Karl Benz called his invention, the boxer engine, the "contra engine," while Ferrari sometimes refers to their flat-twelves as 180 degree V12s. Confusing, I know. Marimvibe can change names!:
To be completely correct, a boxer engine is a category within flat/horizontal, which only concerns cylinder arrangement. But that's a nit in your point that not all flats are boxers.
If it's still unclear, check out Diesel_Powa's animation!
9.) Cleveland's Venturi
Despite what it sounds like, 4V didn't mean four valves per cylinder when it came to Ford's Cleveland engines. Axel-Ripper:
Back in the original muscle car days, there existed the Ford 351 Cleveland. They had 2V and 4V variants, for 2 valve and 4 valve, presumably. However, this did not stand for the number of valves in the head. They were both 2 valve heads. They also could both be had with 2 barrel or 4 barrel carbs, though they're commonly termed 2 barrel or 4 barrel engines. Instead, it just means the size of the ports and valves, which on the 4V are ABSOLUTELY FUCKING MASSIVE.
8.) The Great AWD/4WD Confusion
The transfer case makes all the difference, and while both will give you more grip, 4WD with hi/low gearing and locking differentials is what you want off-road. Your AWD grocery getter most likely doesn't have that.
7.) Toyota's Party Button
While it might be the best button ever, all it does is boosting the stereo's bass and pushing the equalization to the back speakers. Sadly, it doesn't instantly start a party with rolled down windows and a Champagne dispenser.