The GTLM uses a supercharged, 4.6-liter Ford SVT V-8 engine to produce its 420 horsepower and 320 pound-feet of torque, all in a package that weighs 3384 pounds. It features a Tremec T56 six-speed transmission and a limited slip differential. It does 0-62 miles per hour in 4.2 seconds, and has a...