There are few experiences more exhilarating than being a spectator at a Formula One or IndyCar race. The adrenaline-boosting thrill of watching these single-seat, curve-busting cars zoom is difficult to match. And although self-driving race cars may be on the horizon, for now, fans are happy to cheer for their favorite driver.

The two racing series certainly have a lot in common—not least for their level of competition. Indeed, these

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are built for speed and we wouldn't have it any other way. Yet there are several significant differences between IndyCar and Formula One.

Formula One race cars are aerodynamic wonders

The first Formula One World Championship took place in 1950, and the sport has run uninterrupted since that year. Since then it’s only been expanding, culminating with a 23-driver field last year. The races take place around the world, most commonly on roads built for that purpose.

The 10 teams are supported by various manufacturers, including Ferrari, Mercedes, and Renault. Since 2014, a hybrid engine system has been in place to augment the V6 turbo engines. As such, the precisely engineered machines generate almost 1000 hp.

Aerodynamics, of course, plays a crucial role in the Formula One car's racing performance. Restrictions are applied on width, height, and location but the teams can freely adjust outside those perimeters. Formula One utilizes what is called a Drag Reduction System (DRS) which allows drivers to more easily overtake another car, according to

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IndyCar is the world's fastest and most diverse car race

MORE: Olympic Car Racing: Is It Coming Back?

The IndyCar series runs on a diverse range of circuits, from unpredictable street courses to super speed ovals. IndyCar utilizes some of the same features as F1, including the same aerodynamic kit and chassis—though Honda and Chevrolet typically supply the mechanics. Most races consist of 24 or 25 talented drivers, and there are usually 17 races every year.

IndyCar engines are 2.2-liter twin-turbocharged V6s, normally producing roughly 550-700hp 550 bhp to 700 bhp—though the numbers change based on circuit.

That’s projected to change in 2023, though, as IndyCar will add a hybrid element boosting engine size to 2.4-liters and power up to 900 hp.

What are the differences between Formula One and IndyCar?

MORE: Female Engineers Were Key Players Behind IndyCar 3-Win Streak

IndyCar and Formula One certainly share a number of similarities—but there are a fair few differences as well. The casual viewer might not notice the discrepancies, but true race fans are in the know. That Formula One is Eurocentric and IndyCar remains mainly an American race series is just a start; the cars are designed with specific priorities in mind.

Formula One's aerodynamics only allow it to attain a top speed of 220 mph—even with assistance from the DRS. IndyCars, despite being shorter and lighter than their F1 counterparts, can zip around the track at up to 240 mph. IndyCars don't have power steering, which results in a more physically robust driving experience.

Both car series have access to the push-to-pass overtaking aid—though the feature is limited to street courses. But while the use of it is restricted in F1, the IndyCar drivers are free to use the aid to their advantage with little restriction.

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Being a spectator at a Formula One or IndyCar race might be one of the most exhilarating experiences you ever have. But making sure you have the best car insurance on your own ride is important too.

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