In the part where the guys are contemplating jumping the bridge, the smart guy starts "calculating" using physics to see what speed is needed to get across the gap. He states that the factory weight of the car (an early-90's model Ford Taurus GL sedan) is 1600 lbs when in fact that model vehicle actually weighs 3,083 lbs.
Maybe he meant 1.6 tons, that would make perfect sense.
But more importantly for anyone that know physics the velocity is the only important factor, along with the angle of the bridge and the distance over the creek. The weight plays no role in calculating if the car will jump the bridge.
Also in this scene after the jump the bridge and the wheels fall off look at the hub on the drivers side rear of the car... All the lug are still on the car. Taking in the weight of the car and the distance and speed of impact the lugs would have broken off right at the hubs. But I understand all movies are on a budget and I guess replacing 20 lug studs at a buck a piece would put them way over budget. LOL
Talking about the jump and leap, the most essential thing that should be kept in mind is the weight of the car,the weight should be accurately calculated.The second foremost feature is the velocity and the angle of escape from the bridge plane.The rest are secondary considerations.
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