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A couple of weeks ago, spy photographers snapped a prototype 2020 Land Rover Defender 110 with quad-pipes curled under the bumper. When the shooters ran the vehicle's license plate, they discovered the prototype was powered by a 5.0-liter V8. The easy connection is that Land Rover borrowed the automaker's well-traveled AJ 5.0-liter that comes in two supercharged flavors, one making 518 horsepower and 461 pound-feet of torque, the other 557 hp and 516 lb-ft. The easy question is: Why? Unfortunately, we don't have an easy answer, but we can't imagine the testing is for giggles — automakers already have too much to do and less money than they'd like for doing it. Autocar suspects Land Rover is prepping a production Defender V8 because the market is there, and will employ limited production numbers and high price to keep the SUV from blowing up Jaguar Land Rover's fleet average CO2 emissions.