Growing up in the 50's & 60's a neighbor had a 64 Skylark 4 door sedan with a factory three speed and the 300 CID aluminum V8. The car was quite quick for what it was. Of course his son and I raced it where ever we went. We were told not to blow it up as retorquing the heads on a rebuild usually led to stripping the threads in the aluminum block. Heli-coils were still new then and untried so we took it easy from then on.
Still have my '99 Grand Prix GTP, bought it very low mileage in 2005 while in the car biz. Now has 270k on the original trans, probably 85% city driving- they don't like abuse and you have to change the fluid every couple years. I don't baby it but I don't run foot flat/heavy boost through the gears all the time either. All I've done outside of regular maintenance is a fuel pump/injectors, water pump, and intake manifolds- as preventative maintenance even though they were all still doing fine. Burns maybe a quarter litre oil between changes. Looks like new,can't sell it and still enjoy driving it on occasion.
I especially like the Buick engine chart shown in the article. I have owned several of the 63-65 Riviera's and so many folks at the car shows always thought the Wildcat 445 and 465 emblem on the air cleaner was the cubic inches. Of course it was the torque rating which always confused them.
The V6 here is one of those engines people remember much better today than back in the day. They were not smooth or quiet. They held up but did see timing chain issues.
The Early 3.8 Turbo were a bust as GM tried to do it cheap and paid for it. Most died by 30K miles.
Once we moved to the later water cooled intercooler turbo did the engine start to show it could be good. The 3800 was a decent engine but never really had a great platform for it to be in. The FWD cars limited this engine and never let it show what it really could do.
I have driven all of these and owned several myself.
The 215 was an another case of being before its time. Big cheaper to build Cast V8 engines were just a better option at the time.
GM has a history of doing many advanced things 10 years before they are practical or ready. I was glad to see they invested in the BEV stuff and hold it till the prices started to drop and and the ranges were more realistic. The EV1 was never really a production car as it was an experiment.