( http://www.TFLcar.com ) The 2013 V6 Ford Mustang is rated by the factory at producing 305 Hp and Torque: 280 ft-lbs. @ 4250 rpm from its 3.7 Liter engine. At Sea Level it will accelerate from 0-60 MPH in about 5.5 seconds. But when we tested the car at about one mile above sea level in Denver we got a 0-60 MPH time of 7.4 seconds. To find out why there's such a significant difference between the two times we put the new 2013 3.7L V6 Mustang on a Dyno and did a Dyno test to determine the real horsepower at the rear wheels. Check out this video to find out why car are so much slower at high altitudes than at sea level.