This is one great find. The brochure is so brilliantly composed. Always one picture of technical details American cars don't have, then another one with the best-known Munich or Bavarian tourist attractions. From a German point of view this must have been most clever. For North America, that is, it would not have worked in Europe. European catalogues are rather different.
It's a pity BMW sometimes omitted the print dates. This brochure has the No. 01 869 795 110 and describes the model year 1973. (Euro model years start end Sep./early Oct., just like US ones.) On my desk lies a similar brochure No. 01 869 795 110 for model year 1971 or 1971 1/2, as you like. BMW were a small manufacturer then, not the smallest as they write, that would have been Porsche, but great at recycling catalogue pictures. The texts of the two editions are identical, from the Olympic Games to the output of the alternator. Only the entry page was rearranged in a single column. My version has a dual column layout.
Green car, front left - 73 rubbers on overriders, 71/72 car. Early headrests (until approx. Sep. 72), ropes on B-pillar instead of handles above the rear doors (until when? 72, sunroof only). My version: 71 US rubbers on overriders, silver-grey(!) lateral grilles.
Blue car, front right - Exactly as before. Here they probably used two pictures. My version: The fog has moved a little, and the couple is holding hands.
Green car, rear right - Identical, only the windows have been de-tinted. For the second time, the green car two double pages before now has clear glass, too. Cars look the same up to the sticker on the fixed window in the left rear door.
Red car, front - Missing here. 71 - Just like green and blue.
Dashboard - New picture. 73 - 23 miles, empty tank, veneer around heater controls & a/c panel with words, FSB light. 71 - 5246 miles, tank 1/4 full, veneer with signs, blank a/c panel, no FSB sign.
Interior front left - Missing here. 71 - Vinyl Goldbraun, no seatbelts.
Interior rear - New picture. 73 - Vinyl Marineblau, new headrests with ears (front & rear), front seatbelts. 71 - Vinyl Goldbraun, early headrests, front only, no seatbelts.
Side note: BMW usually used beige or light brown interiors for the E3 catalogues except for some pictures between 1971 and 1973.
Green car, front - Missing here. Probably nothing new.
Automatic selector lever - Identical, but no 3.0 S Bavaria Series 2. Picture shows a 2500 Series 1 or maybe a 2800 Bavaria Series 1 with cloth upholstery.
On closer inspection, I've found some small differences in the text, e.g. the heated rear window went from optional to standard.
Some things I would not have noticed, had
@Dick Steinkamp not mentioned them before.
@Frederick , hope you instantly bought the brochure.