We have updated results for the G to include owner experiences through March 31, 2010. In terms of repair trips per 100 cars per year:
2009: 10, better than average
2008: 30, better than average
2007 coupe: 41, better than average, very small sample size
2007 sedan: 60, about average
2006: 50, better than average
2005: 65, about average
2004: 32, better than average
2003: 74, about 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.
The percentage with no repairs is about 51 for the 2003, 83 for the 2004, 69 for the 2006, 56 for the 2007 sedan, and 80 for the 2008, while the percentage of lemons is about 3 for the 2003, 4 for the 2007 sedan, and less than one for the others. These stats require more data, so we don't yet have them for other model years.
Nada-odds and Lemon-odds car reliability stats
A big thank you, once again, to AZhitman, this forum, and everyone who has been helping. We'll have further updates in August and November. The more participants we have, the better the information we can provide.
Infiniti G35 / G37 reliability comparisons