As of my knowledge cutoff in September 2021, here are some of the top 5 fastest cars in the world:
Bugatti Chiron Super Sport 300+:
The Bugatti Chiron Super Sport 300+ holds the title for the fastest production car in the world. It reached a top speed of 304.77 mph (490.48 km/h) during a high-speed record run.
Hennessey Venom F5:
The Hennessey Venom F5 is a hypercar that aims to surpass the 300 mph (483 km/h) barrier. It has a claimed top speed of 301 mph (484 km/h), although it has not yet been officially tested.
Koenigsegg Jesko Absolut:
The Koenigsegg Jesko Absolut is a high-performance hypercar known for its aerodynamics. It is projected to have a top speed of over 300 mph (483 km/h), although it has not been officially tested.
Bugatti Veyron Super Sport:
The Bugatti Veyron Super Sport held the title of the world’s fastest production car before being surpassed by the Chiron Super Sport 300+. It has a top speed of 267.8 mph (431.07 km/h).
SSC Tuatara:
The SSC Tuatara is a hypercar designed to break speed records. It claimed a top speed of 331.15 mph (532.93 km/h) during a high-speed record run, although there has been some controversy and ongoing debate surrounding its achievement.
It’s important to note that the automotive industry is continuously evolving, and new cars may be introduced that can challenge or surpass these records in the future. It’s always recommended to refer to reliable sources or official announcements for the most up-to-date information on the fastest cars in the world.