The classic Land Rover Defender doesn't lack for fans, but the powertrain and chassis leave a lot to be desired compared to modern SUVs. Black Bridge Motors of Norwalk, Connecticut, has launched a new line of Defenders under the Function brand, retrofitting the iconic Defender bodywork on the JK Jeep Wrangler frame. The JK's six-inch longer wheelbase means more room for rear-seat passengers, and Function has flawlessly refit the four-door body to the chassis. Function offers two engine options — the 430 horsepower, 6.2-liter GM LS3 V8 mated to a six-speed auto, and the supercharged, 650 horsepower LT4 with an eight-speed. Three Brembo braking systems are available, and the long list of interior and exterior choices means buyers can tailor their Defender down to the finest detail.