Ford built its most hyped modern supercar around a V6, and asked buyers to trust the engineering. At Barrett-Jackson in Scottsdale, Lou Costabile caught one of the first production 2017 Ford GTs alongside Ford’s own performance marketing manager, who calls it the ultimate expression of form following function. The comments don’t fully agree, and one viewer even makes a detailed case for a 900-hp handmade rival that costs a fraction as much. Who’s right depends on what you think a supercar is actually for.