According to Guinness World Records, the Dodge Ram SRT-10 marked itself as the fastest production truck in 2004, with a top speed of nearly 155 miles per hour. Such extraordinary velocity is thanks to an 8.3-liter V10, the same beast that powers the Dodge Viper. Power is rated at 500 horsepower at 5,600 rpm and 525 lb.-ft. of torque at 4,200 rpm.