Talk:McLaren MP4-X/@comment-107.212.196.105-20161106010835/@comment-27123099-20161107225254

Well, then they are wrong :-)

Formula 1 cars were never IndyCars. The term Indy cars is taken from the cars which race in the IndyCar Series, which is a primarily US-based affair (though they have one race in Canada). It's taken from the fact that IndyCar hosts the Indy 500 each year, a very well-known race.

On the other hand, Formula 1 cars are part of the Formula 1 series, administered by the FIA. Though, previously (and sometimes still today), they were referred to as Grand Prix cars.

Basically, just being open wheel does not mean they are Indy cars, or F1 cars for that mater. There are many different types of open wheel series events.