Granada is right. Look at this.
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This is the first E3 road test in Germany's largest car magazine. They were given a Chamonix 2500, M-CJ177. All pictures in the article show that white car. Except for the cover shoot where they used the Granada M-CJ178, for obvious reasons. A brilliant decision and also that it's on the left lane of a motorway, home territory, so to say. (This picture of the cover found on the web.)
I understand your uneasiness changing your car's colour. To my mind it is perfectly acceptable to go from a more common colour to a less common one that is period correct. Apart from that it is your car so you decide. In this case: Hats off to your and your wive's decision.
Chamonix is a nice colour, too. A huge portion of Series 1 E3 came in Chamonix, not quite exclusive but very fashionable in continental Europe at the time. Most early demonstrators, however, were Atlantic. Says my club president who was a boy then, with a keen interest in the new large BMW.
By the way, see what happens when E3 Club members get ideas. This is in Rottach-Egern at the Tegernsee (deep Bavaria). The first two pictures were taken early September 2021, the third is a BMW press photo from spring 1969 (courtesy of BMW Group Classic). Note the licence plates although they are for display only (Granada & Riviera).
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Earlier that day our club friends paid another member a visit. Both 2800 from July 1969, the right car being about seven to ten days older. Beltline trim was retrofitted at some time, lots of owners had this done in order to make their sixties E3 look more seventies. (The 2021 pictures come from the BMW E3 Club.)
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