The number of women needed to lift a car depends on numerous factors, such as the weight of the car and the physical strength of the women. Based on figures from the EPA and NASA, it would take approximately 25 women to lift an average-size car under normal circumstances.
According to the EPA's weight statistics, the average weight of a car in the Unites States is approximately 4,009 pounds. A NASA report on human performance places the average female lifting capacity at equivalent to the average female body-weight of 162 pounds. By dividing 4,009 pounds by 162 pounds, the figure that results is the number average women needed to lift this average vehicle. The exact result is 24.7 women, which rounds up to 25.