What is the fastest production car in the world?

The Koenigsegg Agera RS is currently the world’s fastest production car, with an officially recognised top speed of 277.9mph. The record was set in 2017, breaking the previous record of 267.9mph, which was held by the Bugatti Veyron Super Sport since 2010. Bugatti managed to break the 300mph barrier with a modified Chiron in 2019 with a run of 304.774mph, but the car is not yet production ready. There's also new competition for top spot in the form of the American-made Hennessey