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Nissan 350Z / 370Z vs. Kia Optima Reliability Comparisons

You won't find Nissan 350Z / 370Z or Kia Optima reliability information like this anywhere else. Actual repair frequencies, not just vague dots, to make it clear how much the Nissan 350Z / 370Z and the Kia Optima truly differ in reliability.

These stats are promptly updated four times a year, to much more closely track Nissan 350Z / 370Z and Kia Optima reliability as the cars age. Others tell you how reliable the Nissan 350Z / 370Z and the Kia Optima were a year ago, when the cars were a year younger and had 12,000 fewer miles on them. Only TrueDelta tells you how reliable the Nissan 350Z / 370Z and the Kia Optima have been recently.

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See reliability results for all Hatchbacks

See only powertrain and chassis results

Year Make/Model Repair Frequencysuccessful repair trips per 100 cars per year Compared to all models for the same year  
2013 Kia Optima 54 Optimas, 7.7 months of data per Optima, average 10000 miles23
30% Fewest Trips Most Trips
see reported repairs

 

2012 Kia Optima 46 Optimas, 9.1 months of data per Optima, average 20600 miles32
40% Fewest Trips Most Trips
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2011 Kia Optima 28 Optimas, 9.4 months of data per Optima, average 32500 miles

Redesigned for this model year. Brake switch a common problem in early cars. When it fails, car won't start.
32
30% Fewest Trips Most Trips
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2009 Nissan 370Z   19 370Zs, 9.5 months of data per 370Z, average 26100 miles

* Small sample size.
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or 19 370Zs, 9.5 months of data per 370Z, average 26100 miles

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2008 Nissan 350Z   10 350Zs, 7.6 months of data per 350Z, average 34900 miles

* Very small sample size.
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or 10 350Zs, 7.6 months of data per 350Z, average 34900 miles

* Very small sample size.
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2007 Kia Optima   13 Optimas, 8.8 months of data per Optima, average 96100 miles

* Very small sample size.
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or 13 Optimas, 8.8 months of data per Optima, average 96100 miles

* Very small sample size.
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2007 Nissan 350Z   10 350Zs, 9.4 months of data per 350Z, average 38400 miles

* Very small sample size.
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or 10 350Zs, 9.4 months of data per 350Z, average 38400 miles

* Very small sample size.
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2006 Nissan 350Z   14 350Zs, 9.1 months of data per 350Z, average 68800 miles

* Very small sample size.
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or 14 350Zs, 9.1 months of data per 350Z, average 68800 miles

* Very small sample size.
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2005 Kia Optima   12 Optimas, 9.1 months of data per Optima, average 96400 miles

* Very small sample size.
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or 12 Optimas, 9.1 months of data per Optima, average 96400 miles

* Very small sample size.
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2005 Nissan 350Z   13 350Zs, 7.6 months of data per 350Z, average 75500 miles

* Very small sample size.
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or 13 350Zs, 7.6 months of data per 350Z, average 75500 miles

* Very small sample size.
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2004 Kia Optima   23 Optimas, 8.5 months of data per Optima, average 115400 miles

* Small sample size.
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or 23 Optimas, 8.5 months of data per Optima, average 115400 miles

* Small sample size.
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2004 Nissan 350Z   20 350Zs, 7.2 months of data per 350Z, average 67600 miles

* Small sample size.
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or 20 350Zs, 7.2 months of data per 350Z, average 67600 miles

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2003 Nissan 350Z 25 350Zs, 10.1 months of data per 350Z, average 87600 miles43
0% Fewest Trips Most Trips
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What People Are Saying about Reliability and the Nissan 350Z / 370Z

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What Our Members Are Saying about Nissan 350Z / 370Z Reliability and Durability

Reliability and Durability of the Nissan 350Z / 370Z: Pros
YearBody/PowertrainComment
2009 2dr Hatch 332-horsepower 3.7L V6
6-speed manual RWD
My last two Nissans have each gone over 150,000 miles. Both were easy keepers, reliable, and inexpensive to service. I expect the same from this one. Servicing costs on the Cayman are a nightmare by comparison, despite long recommended service interval
2008 2dr Hatch 306-horsepower 3.5L V6
5-speed shiftable automatic RWD
Very reliable, have not had long enough to evaluate durability.
2007 2dr Convertible 306-horsepower 3.5L V6
5-speed shiftable automatic RWD
I drove this car in 15 degree weather, It cranked up the same as 80-90 degree days
2006 2dr Convertible 300-horsepower 3.5L V6
6-speed manual RWD
So far no problems.
2005 2dr Hatch 287-horsepower 3.5L V6
5-speed shiftable automatic RWD
nissans have always been know to be well built and reliable.
2004 2dr Hatch 287-horsepower 3.5L V6
5-speed shiftable automatic RWD
Relatively cheap to maintan for a sportscar. Nissan engines can run pretty high in mileage and be just fine.
2004 2dr Hatch 287-horsepower 3.5L V6
6-speed manual RWD
Strong, durable engine and drivetrain. Have only had standard maintenance - no repairs. This includes taking the car to the track and autocross on occasion.
2004 2dr Hatch 287-horsepower 3.5L V6
5-speed shiftable automatic RWD
never had to do any major repairs on my Z
2003 2dr Hatch 287-horsepower 3.5L V6
6-speed manual RWD
Its engineered to last and the parts are reasonable, not cheap, but reasonable
2003 2dr Hatch 287-horsepower 3.5L V6
6-speed manual RWD
My car has 50k on it and it was heavily track used by the previous owner. Basically no problems or major repairs. Pwr steering pump went out, given it was a first year model, notorious for bugs. After that, only needed new tires.
Reliability and Durability of the Nissan 350Z / 370Z: Cons
YearBody/PowertrainComment
2011 2dr Hatch 332-horsepower 3.7L V6
6-speed manual RWD
Engine is a hit or miss with oil consumption.

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What Our Members Are Saying about Kia Optima Reliability and Durability

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