We have updated reliability stats for the Altima to include owner experiences through September 30, 2012.
Repair frequencies, in terms of repair trips per 100 cars per year:
2012: 12, better than average
2011: 29, better than average, small sample size
2010: 30, better than average
2009: 37, better than average
2008: 22, better than average
We have two additional statistics, "Nada-odds" and "Lemon-odds," to indicate the percentage of cars with no repairs in the past year and those that required 3+ trips to the repair shop.
These stats, for the years with enough data:
2010: 75, less than 1
2009: 76, less than 1
2008: 82, less than 1
We'll have further updates in February and May. The more owners participate, the more precise these will be!
To see how competitors compare, and to sign up to help:
Nissan Altima reliability ratings and comparisons