Not sure if this was posted in this thread. Good comparison for those that have a 1M.
2011 BMW 1M interior noise
Idle in Neutral - 55 dBA
Maximum, 1st gear - 81 dBA
Constant 50mph - 76 dBA
Constant 70mph - 80 dBA
2016 BMW M2 interior noise
Idle - 51 dBA
Full throttle - 89 dBA
70mph cruising - 72 dBA
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