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Infiniti M and Kia Optima Lemon Odds and Nada Odds for the Year Ending June 30, 2018

An asterisk (*) marks results based on small sample sizes.

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Year Make/Model Nada Odds per 100 Cars Lemon Odds per 100 Cars    
26 vehicles, 11.8 months per vehicle, 73200 miles driven2013 Kia Optima Join or sign in to view   see reported repairs
  26 vehicles, 11.8 months per vehicle, 73200 miles driven

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Infiniti M vs. Kia Optima Lemon Odds and Nada Odds

Other sources of Infiniti M and Kia Optima reliability data provide only averages, which can conceal as much as they reveal. So we also report the percentage of Infiniti Ms and Kia Optimas with no repairs at all in the past year and the percentage of Infiniti Ms and Kia Optimas that are lemons (required three or more repair trips in the past year). These figures might surprise you.

These stats are promptly updated four times a year, to closely track Infiniti M and Kia Optima lemon odds as the cars age. Others can be over a year behind. Only TrueDelta tells you how reliable the Infiniti M and Kia Optima have been recently.

To see how frequently Infiniti M and Kia Optima problems occur, check out our car reliability stats.

What Our Members Are Saying about the Brand Reputation of the Infiniti M

Infiniti M Brand Reputation: Pros
YearBody/PowertrainComment
2007 4dr Sedan 325-horsepower 4.5L V8
5-speed shiftable automatic RWD		 Infiniti has always been a reliable car with quality workmanship see full Infiniti M review
2006 4dr Sedan 280-horsepower 3.5L V6
5-speed shiftable automatic AWD		 Good, although local dealer has a monopoly, and thus overpriced locally. works against me when I want to buy. The Grand prix, is very good value for the money, and my wife still prefers the Grand Prix. The M is big and heavy, G is quicker, but more common see full Infiniti M review
2004 4dr Sedan 340-horsepower 4.5L V8
5-speed shiftable automatic RWD		 People driving other luxury cars that it competes with know not to screw with an M45. Drivers of cars it does not directly compete with (who are car people) know what it is capable of & unless they purposely bought a rocket, will leave the M alone. see full Infiniti M review
2003 4dr Sedan 340-horsepower 4.5L V8
5-speed shiftable automatic RWD		 It is an Infiniti. What more can I say! :) see full Infiniti M review
Infiniti M Brand Reputation: Cons
YearBody/PowertrainComment
2011 4dr Sedan 330-horsepower 3.7L V6
7-speed shiftable automatic AWD		 I am very unhappy that Infiniti is rebadging its entire product line. The car will go the way of the Dodo after only three model years. Not good for resale value. see full Infiniti M review
2006 4dr Sedan 280-horsepower 3.5L V6
5-speed shiftable automatic AWD		 Still need to improve the reliability see full Infiniti M review
 

What Our Members Are Saying about the Brand Reputation of the Kia Optima

Kia Optima Brand Reputation: Cons
YearBody/PowertrainComment
2013 4dr Sedan turbocharged 274hp 2.0L I4
6-speed shiftable automatic FWD		 Kia doesn't have the best reputation, though I get the sense that it's slowly improving. Speaking personally, I would have laughed at the idea of buying/leasing anything from Kia even three years ago. However, in that time, I've had two: a 2011 Kia Sportage EX and, now, a 2013 Kia Optima SX Limited. The mediocre brand image is a unfortunate, because if you slapped another make's emblem on this car, people would probably be absolutely gushing over it. As I said, I don't think their image is improving, though. see full Kia Optima review
2007 4dr Sedan 161-horsepower 2.4L I4
5-speed shiftable automatic FWD		 poor trade in value but intend to keep long time due to great warranty; Kia discounting cars in USA to gain brand penetration; much better priced here than in Europe for the same car. see full Kia Optima review