Formula 1 is the pinnacle of automotive engineering and international motor racing. The cars used in F1 are the fastest regulated road-course racing cars in the world, capable of reaching incredible speeds. Engineering teams spend hundreds of millions of dollars every year to gain a fraction of a second in performance. Aerodynamics plays a massive role, with front and rear wings designed to push the car down onto the track for better grip. F1 engines are highly advanced hybrid power units that produce over a thousand horsepower from a small 1.6-liter V6 engine. Safety has also improved drastically over the years, with the introduction of the halo device to protect the driver's head. Every race is a test of both human skill and technical innovation, as drivers push their machines to the absolute limit under extreme physical pressure.