Most and Least Knowledgeable U.S. Drivers, 2010 Based on the average scores on a 20-question driving test commissioned by the GMAC Insurance Company, the most knowledgeable drivers in the U.S. are from Kansas and the least knowledgeable are from New York. RankState 1. Kansas 2. Oregon 3. South Dakota 4. Minnesota 5. Iowa 6. Nebraska 7. Indiana 8. Idaho 9. Montana 10. Alaska 11. Washington 12. Wisconsin 13. Oklahoma 14. North Dakota 15. Michigan 16. Missouri 17. Arizona 18. Wyoming 19. Tennessee 20. Maryland 21. Nevada 22. Vermont 23. Utah 24. Colorado 25. Delaware 26. Maine 27. Ohio 28. Virginia 29. New Mexico 30. South Carolina 31. Alabama 32. Georgia 33. Illinois 34. Connecticut 35. Texas 36. Arkansas 37. North Carolina 38. Massachusetts 39. Pennsylvania 40. Mississippi 41. Florida 42. Kentucky 43. New Hampshire 44. Hawaii 45. West Virginia 46. Louisiana 47. Rhode Island 48. California 49. District of Columbia 50. New Jersey 51. New York Source:General Motors Acceptance Corporation (GMAC) Insurance National Drivers Test administered to 5,000 licensed drivers nationwide. Widespread Bad Driving Habits According to the GMAC survey: 50% report that they do not know how to merge into heavy traffic. 60% say that they change lanes on a highway without using their blinker. 17% percent of Americans have driven without a rear view or driver's side mirror. 20% do not know that a pedestrian has the right of way at a marked or unmarked crosswalk. 25% drivers would roll through a stop sign rather than come to a complete stop. One-third admit they speed up to make a yellow light even when pedestrians are in the crosswalk.