I remember that ad. When My Dad saw it, he was very upset that they would drill holes in the fender of a brand new car
they liked using glasses of wine to demo smoothness, they did it in the 73 promo for the Riviera 455 on the air cleaner -- compared to competitors engine (ford) they also stuck the car in a freezer see the vid and other promos at http://www.boattail-riviera-by-buick.com/ be sure to check the special Buick (more than GS was special in 72) also a theres also a 72 Buick features video - PS registry members and major library contributors are getting the full Buick model line 71-73 of theses videos for Christmas (with as many as get I done restored like the 71 Riviera. http://fullsizebuickregistries.boattail-riviera-by-buick.com/
