Paul Pfanner on what the next Indy car should be built to prove once raw speed has reached its useful limit. Third in his series on the future of the sport.

Paul Pfanner on why IndyCar's new car is frozen on purpose, now that a broadcaster owns a third of the series, and what that costs in a world moving faster than 230 mph.

Paul Pfanner on IndyCar's new IR-28, and what a race car is for once the meaning leaves the machine.