ATLANTA — BUYING a new car is special. Buying a new sports car is very, very special. Buying a new sports car together with your adult son and then driving on a racetrack is an experience that lacks enough adjectives.

My son, Sam, and I recently traveled to this city, home of the American headquarters of our love object: Porsche.

The company has a new-car delivery program in which buyers can have their cars shipped from Germany for pickup here, with a special bonus: New owners can spend time on the company’s track with driving instructors to learn the vehicle’s capabilities, and try various sports car maneuvers that would be frowned upon on public roads.

Sam and I had combined resources to lease a 2016 Porsche Cayman S, the little brother of the formidable 911 and a car that reviewers have praised for its driving dynamics.