EDIT July 8, 2020:
The cheapest 6MT M3 500 miles from San Francisco is $46,995.
The cheapest DCT/6MT M3/M4 500 miles from San Francisco is $35,777.
The cheapest 6MT M3 across America is $42,950.
EDIT June 5, 2020:
The cheapest 6MT M3 500 miles from San Francisco is $43,439.
The cheapest DCT/6MT M3/M4 500 miles from San Francisco is $29,995.
The cheapest 6MT M3 across America is $38,490.
EDIT April 21, 2020 (with the pandemic in mind):
The cheapest 6MT M3 500 miles from San Francisco is $37,500.
The cheapest DCT/6MT M3/M4 500 miles from San Francisco is $31,900.
EDIT March 9, 2020:
The cheapest 6MT M3 500 miles from San Francisco is $39,250.
The cheapest 6MT/DCT M3/M4 500 miles from San Francisco is $35,995.
The cheapest
M3 6MT 500 miles near San Francisco is $39.5k - ignoring the California premium, what makes the 6MT M3 command a large premium over a DCT M3/M4? Do you think it will be similar to a convertible E46 M3 vs 6MT coupe E46 M3? (e.g. 2-3x value difference)
Also, here is an interesting graph of M3 price trends from carguru. When was the last time a relatively new luxury german sedan went up in value?