A new encode of this clip has been uploaded here:
http://archive.org/details/0691_Impact_66_02_17_49_00

Probably one of the most gonzo Jam Handy films every made, Impact '66 is essentially 2 films. Part 1 tells of the fabulous(ly ugly) new line up of Chevrolets they've come up with for 1966.Comparison tests are shown between other competitive cars (predictable results). Also, a demolition derby is shown.. I'm not sure why. Everything takes a complete turnaround in the second half, where all of a sudden, we're treated to a incentive pitch to Chevy salespeople to SELL SELL SELL more cars! Double dividends will give you Mexican holidays1 (shown with a VERY cheap looking flyer and pictures) topflight merchandise! and cash! What's so interesting about this is how this uses all sorts of cheap subliminal advertising techniques to woo the salepeople in, using optical illusions and everything. And at the end, Lorne Greene comes on in full Bonanza gear to give more boosting! Finally a cartoon of a red indian trying to blow up a chevy is shown. WHY? who knows.All very weird and wonderful. Though not ALL of the show is like this, the 2nd half is definitely worth seeing then the first, so I'll give the whole thing a highly reccomended rating from me.

Part I introduces the new '66 Chevrolets to dealers and salesmen (sic.) Comparisons are made between Chevy and "the competition", including, strangely, cars from other GM divisions, including GTO and Olds 442. Pretty convincing - I really wanted to buy a '66 427 after watching this film, and I've never even owned an American car.

Part II gets to the heart of the matter - incentives for successful sales! Note groovy, op-art graphics, juxtaposed with gray, Brooks Brothers-clad spokesman.