And, Speaking of Parnelli Jones ...

Here is a race Parnelli Jones really should have won!

Note the cool air brake on the tail of Parnelli's #40 STP car, visible in operation at around 12:41 of this video (and also at 27:35, where the announcers mention it).  It deploys upward to provide aerodynamic drag for braking.

Pay attention also at 25:20, when Parnelli spins the car after going low on the apron to avoid a slower car.

Other race highlights:

At 2:44, Dan Gurney is being interviewed, and predicts that the turbine car might have gearbox failure (I think this is called "foreshadowing").

At 26:40, Mario Andretti loses a wheel.

At 28:00, the STP team has a bungled pit stop.  Jones pulls off before the fuel hose is disconnected from his car, and almost runs over Granatelli's foot.

At 45:30, eventual winner A. J. Foyt comes close to being collected up in a last lap wreck.

Perhaps my favourite part of the video, though, is the interview with Graham Hill, which begins around 2:12.  Many drivers were resentful of the turbine car's speed.  But Hill had a different take:

"I don't think it's unfair at all!  I think it's bloody clever, and full marks to Granatelli for doing it.  I man, it was a hell of a gamble, and it's paid off.  I think he deserves every credit.  I'm only sorry thta I didn't think of it first!"