The American agency J.D. Power published a fresh quality rating of new cars for 2019. As before, experts surveyed car buyers after the first 90 days of ownership. We have already written to you about the initial results of this study, and now expanded data is available. 
A total of more than 76 thousand respondents participated in the survey, and they were asked to evaluate the cars on 233 different parameters.
Based on their answers, the problematic nature of each car was determined. The market average is 93 complaints per 100 cars. Modern electronic systems and multimedia performance are the main sources of dissatisfaction. Korean brands topped the J.D. Power ranking.
The leader is Genesis with 63 problems per 100 cars. Followed by Kia (70) and Hyundai (71).
The Most Reliable Cars of 2019:
Genesis – 63 problems per 100 cars
Kia – 70
Hyundai – 71
Ford – 83
Lincoln – 84
Chevrolet – 85
Nissan – 86
Dodge/Lexus/Toyota – 90 each
Buick – 92
GMC/Mazda/Mercedes – 94 each
The most reliable car of 2019 is the Porsche 911. The best models in their classes are also named:
Small cars – Kia Rio
Small premium cars – BMW 2-Series
Compact cars – Kia Cerato (Forte)
Compact sports cars – Mini Cooper
Compact premium cars – Genesis G70
Midsize cars – Chevrolet Malibu and Ford Mondeo (Fusion)
Midsize sports cars – Dodge Challenger
Midsize premium cars – Mercedes-Benz CLS
Large cars – Nissan Maxima
Minivans – Kia Sedona
Small crossovers – Kia Sportage
Compact crossovers – Chevrolet Equinox
Compact premium crossovers – BMW X4
Midsize pickups – Ford Ranger
Midsize crossovers – Hyundai Santa Fe
Midsize premium crossovers – Lexus RX
Large SUVs – Chevrolet Tahoe
Large premium SUVs – Cadillac Escalade
Large light pickups – Nissan Titan
Large heavy pickups – Chevrolet Silverado HD