"We" tend to think the weight would be a factor, but it's a very slight one. I'd guess a car would be around 120 mph, same as a human. I think a human can hit 180+ head down, so maybe the bullet thing is wrong.
In October, at the United States Parachute Association Nationals in Arizona, Lobpries became the fastest athlete in the sport when he reached a speed of 318.74 m.p.h. That exceeded his previous world record of 316.23 m.p.h. Maxine Tate, a fellow American competitor, also broke her own women’s world record, increasing her speed from 275.8 to 285.27 m.p.h. Those records blow by the top speeds of NASCAR, IndyCar and Formula 1 drivers, who have never surpassed 260 miles per hour in official competitions.
It’s a sport for people who have flung themselves out of planes with such frequency that the simple act of strapping on a parachute and staring at a 13,000-foot drop no longer offers an adequate adrenaline rush.