As of my last update, the title of the fastest car in the world was contested among several manufacturers, but the Bugatti Chiron Super Sport 300+ held the record for the fastest production car, reaching a top speed of 304.77 mph (490.48 km/h) in 2019.
However, there are also claims from other companies, like SSC North America with their SSC Tuatara, which has recorded speeds exceeding 300 mph, creating some debate in the automotive