I did something simlar and added an F80 CP M3 for kid duty (1M stays in the garage most of the time). The wife didn’t like the RS and it was difficult to buy (also got a great deal on the M3).

Only 740 in the United States; Most of them are Orange, followed closely by White, very few in Black (like mine).

1M’s have appreciated since new (atleast in the US where only 740 where delivered)

BSM >>> Valencia (although I am biased) and much rarer too. By the way you can now get Valencia on an X1 or 228i...

I concur. However, make it BSM instead of Valencia. Rarest and Meanest Looking Color:

I concur but prefer my 1M in black (looks meaner).

Best M3 lacks the “3”: