For the second straight year, Kia scored highest in an initial quality ranking for new cars, according to the findings of the J.D. Power 2017 U.S. Initial Quality Study that was released today.

The study examined problems experienced by vehicle owners during the first 90 days of ownership. Initial quality of each make was determined by the number of problems experienced per 100 vehicles. 24/7 Wall St. reviewed quality scores for all 32 car brands considered by J.D. Power.

J.D. Power, based in Costa Mesa, California, said new-vehicle quality is at its highest level ever, improving 8% from last year. Even so, some manufacturers continue to sell cars that cause grief to new-car buyers. A new owner of some of these poorly rated cars is more likely than not to report at least one problem in the first three months of ownership.

Click here to see the best and worst new cars.

MINI is the most improved brand, with owners reporting 33 fewer problems per 100 vehicles than in 2016. Other brands with strong improvement include Ram, Acura, Volvo, and Ford.

“Today’s vehicles have more things that could go wrong but fewer things that actually do go wrong,” said Dave Sargent, vice president, global automotive at J.D. Power, in a press release.

Car technology continues to improve, offering seemingly endless options of special features. According to the J.D. Power study, plenty of problems remain despite technological advancements. Based on reported problems, the quality of a number of luxury add-ons including cruise control, lane departure warnings, collision alert systems, and blind spot warning systems, got worse.

When the study was first published in 1987, people reported problems with their carburetors, cassette players, and their manual wind-up windows. Drivers were concerned about their vehicle not starting in the morning and not being able to get them where they needed to go without breaking down. Cars have become more reliable and people now worry about their voice-recognition system not being perfect, or the sensitivity of their lane-departure warning system.

To identify the best and worst new cars, 24/7 Wall St. listed the problems per 100 vehicles score for each of the 32 nameplates measured in J.D. Power’s 2017 U.S. Initial Quality Study. The study is based on responses from more than 80,000 purchasers and lessees of new 2017 model-year vehicles surveyed after 90 days of ownership. 2016 vehicle sales figures for each brand were obtained from GoodCarBadCar.net.

These are the best and worst new cars.

1. Kia
> Problems in first 3 months: 72 per 100 cars
> 2016 unit sales: 647,598
> Parent company: Hyundai Motor Group

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2. Genesis
> Problems in first 3 months: 77 per 100 cars
> 2016 unit sales: 6,948
> Parent company: Hyundai Motor Group

3. Porsche
> Problems in first 3 months: 78 per 100 cars
> 2016 unit sales: 54,280
> Parent company: Volkswagen Group

4. Ford
> Problems in first 3 months: 86 per 100 cars
> 2016 unit sales: 2,487,487
> Parent company: Ford Motor Company

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5. Ram
> Problems in first 3 months: 86 per 100 cars
> 2016 unit sales: 545,851
> Parent company: Fiat Chrysler Automobiles NV

6. BMW
> Problems in first 3 months: 88 per 100 cars
> 2016 unit sales: 313,174
> Parent company: BMW

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7. Chevrolet
> Problems in first 3 months: 88 per 100 cars
> 2016 unit sales: 2,096,510
> Parent company: General Motors

8. Hyundai
> Problems in first 3 months: 88 per 100 cars
> 2016 unit sales: 768,057
> Parent company: Hyundai Motor Group

9. Lincoln
> Problems in first 3 months: 92 per 100 cars
> 2016 unit sales: 111,724
> Parent company: Ford Motor Company

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10. Nissan
> Problems in first 3 months: 93 per 100 cars
> 2016 unit sales: 1,426,130
> Parent company: Groupe Renault

11. Volkswagen
> Problems in first 3 months: 93 per 100 cars
> 2016 unit sales: 322,948
> Parent company: Volkswagen Group

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12. MINI
> Problems in first 3 months: 94 per 100 cars
> 2016 unit sales: 52,030
> Parent company: BMW

13. Buick
> Problems in first 3 months: 95 per 100 cars
> 2016 unit sales: 229,631
> Parent company: General Motors

14. Toyota
> Problems in first 3 months: 95 per 100 cars
> 2016 unit sales: 2,106,374
> Parent company: Toyota Motor Company

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15. Lexus
> Problems in first 3 months: 98 per 100 cars
> 2016 unit sales: 331,228
> Parent company: Toyota Motor Company

16. GMC
> Problems in first 3 months: 99 per 100 cars
> 2016 unit sales: 546,628
> Parent company: General Motors

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17. Chrysler
> Problems in first 3 months: 102 per 100 cars
> 2016 unit sales: 231,972
> Parent company: Fiat Chrysler Automobiles NV

18. Mercedes-Benz
> Problems in first 3 months: 102 per 100 cars
> 2016 unit sales: 374,541
> Parent company: Daimler AG

19. Acura
> Problems in first 3 months: 103 per 100 cars
> 2016 unit sales: 161,360
> Parent company: Honda Motor Co., Ltd.

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20. Cadillac
> Problems in first 3 months: 105 per 100 cars
> 2016 unit sales: 170,006
> Parent company: General Motors

21. Honda
> Problems in first 3 months: 105 per 100 cars
> 2016 unit sales: 1,476,582
> Parent company: Honda Motor Co., Ltd.

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22. Dodge
> Problems in first 3 months: 106 per 100 cars
> 2016 unit sales: 506,858
> Parent company: Fiat Chrysler Automobiles NV

23. Infiniti
> Problems in first 3 months: 107 per 100 cars
> 2016 unit sales: 138,293
> Parent company: Groupe Renault

24. Jeep
> Problems in first 3 months: 107 per 100 cars
> 2016 unit sales: 926,376
> Parent company: Fiat Chrysler Automobiles NV

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25. Subaru
> Problems in first 3 months: 113 per 100 cars
> 2016 unit sales: 615,132
> Parent company: Fuji Heavy Industries

26. Audi
> Problems in first 3 months: 115 per 100 cars
> 2016 unit sales: 210,213
> Parent company: Volkswagen Group

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27. Mazda
> Problems in first 3 months: 125 per 100 cars
> 2016 unit sales: 297,773
> Parent company: Mazda Motor Corporation

28. Land Rover
> Problems in first 3 months: 131 per 100 cars
> 2016 unit sales: 73,861
> Parent company: Tata Motors

29. Mitsubishi
> Problems in first 3 months: 131 per 100 cars
> 2016 unit sales: 96,267
> Parent company: Renault-Nissan Alliance

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30. Volvo
> Problems in first 3 months: 134 per 100 cars
> 2016 unit sales: 82,724
> Parent company: Zhejiang Geely Holding Group

31. Jaguar
> Problems in first 3 months: 148 per 100 cars
> 2016 unit sales: 31,243
> Parent company: Tata Motors

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32. Fiat
> Problems in first 3 months: 163 per 100 cars
> 2016 unit sales: 32,742
> Parent company: Fiat Chrysler Automobiles NV

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