Oklahoma drivers might be less safe in passenger cars than other vehicles. The Insurance Institute for Highway Safety has conducted a study of vehicle safety and found that drivers of minivans, pickups and SUVs may be safer than drivers of passenger cars. The study looked at driver fatalities per 1 million registered vehicles and found that the average number of driver fatalities for all types of passenger vehicles was 30. The rate for passenger cars was 39. Minivans had 19 while for SUVs the number was 21. For pickups, it was 26.