So, how have these cars been doing lately?
Our reliability stats for the M now include owner experiences through March 31, 2015. (Others are nearly a year behind.)
In terms of repair trips per 100 cars per year ("low" is best):
2012 M: 52, moderate, small sample size
2011 M: 40, moderate
Plus, the percentage of cars with no repairs in the past year and those that required 3+ trips to the repair shop:
2011 M: 70, < 1
No stat for a model year? Then we very much need more participants for it. Same for those with small sample size notes. Next updates in August and November.
For repair descriptions, the stats for other cars, and to sign up to help improve this information:
Infiniti M reliability