So the elephant is an outlier in the distribution of both the lifespan and the pregnancy variables. When you drive a car, what is the relationship between the speed you drive and the amount of gas the...So the elephant is an outlier in the distribution of both the lifespan and the pregnancy variables. When you drive a car, what is the relationship between the speed you drive and the amount of gas the car uses? The amount of fuel decreases rapidly to a low point when the speed is 60 kilometers per hour, so the car uses the least amount of fuel at a speed of 60 km/h.