The dummies are designed based on a 273-pound person - or 19 stone - compared to the normal crash test dummies weighing 170 pounds - or 12 stone.
In 1980, the average adult obesity rate in the United States was 15%.
Today obesity has increased considerably to nearly 40% of the adult population.
Obese drivers are also up to 78% more likely to die in a car crash than normal weight occupants, according to a recent study from University of California Berkeley School of Public Health and the Institute of Transportation Studies.
Among the obese, the higher the Body Mass Index (BMI), the more likely they will die in a crash.
With these statistics in mind, the New Humanetics company in Virginia has made the first "Obese Crash Test Dummies" .
They are based on the measurements of a 273-pound person with a Body Mass Index (BMI) of 35.
Before now car firms were still using dummies that weigh 170 pounds, created with anthropometry studies from the 1980s.
Humanetics' CEO, Christopher O'Connor, told USA Today: "Most systems in current automobiles are designed around these 1980s standards.
"With an obese population in the United States of 40%, this 170 pound dummy is no longer representative of the current driving population.
"By offering an obese crash test dummy that represents a large proportion of the population Humanetics fully supports the automotive safety industry in their design efforts to make automobiles safer for everyone," he added.