Who was competition in cars?

There's no single "Competition in Cars." The term refers to the broad field of motorsports, encompassing many different types of racing and competitive driving. To understand the "competition," we need to specify what kind of competition you're interested in:

* By type of racing: This includes Formula 1 (F1), IndyCar, NASCAR, World Rally Championship (WRC), Le Mans (endurance racing), drag racing, drifting, off-road racing (like Baja 1000), and many more specialized forms. Each has its own unique set of competitors, rules, and cars.

* By manufacturer: Major car manufacturers like Ferrari, Porsche, Mercedes-Benz, BMW, Ford, Toyota, and many others compete against each other in various motorsports series, often using cars specifically designed for racing.

* By driver: Individual drivers compete against each other for championships and race wins within a given series. Famous drivers have fierce rivalries that often define eras in motorsports.

* By team: Teams, composed of drivers, engineers, mechanics, and other personnel, compete for overall team championships. Team strategies and performance are crucial aspects of competition.

To give you a more precise answer, please clarify what kind of competition you're curious about. For example: "Who were the main competitors in Formula 1 in 2023?" or "What manufacturers competed in the 24 Hours of Le Mans in 2022?"