Amtrak has a new ad designed to convince Americans to shift their "car-first mindset". Amtrak Amtrak wants to convince more travelers to ditch their cars for the train. A new ad campaign spoofs luxury car ads to hammer home the point. Amtrak's marketing spotlights its NextGen Acela high-speed trains. Amtrak wants to shift America's "car-first mindset". Its newest marketing technique to convince Americans that taking the train is better than driving: mimicking advertising tropes from luxury-car TV commercials. Amtrak's upcoming ad campaign, "The Build," opens like a typical high-end automaker spot, with a swaggering musical soundtrack and a narrator reeling off superlatives like "state of the art engineering" and "electrifying speed." The ad's reveal is that the "smoothest ride on the road" is actually an Amtrak  NextGen Acela  high-speed train.…