Debuting in 2010, the Koenigsegg Agera replaced the CCX. The Agera was similar to the CCX, a mid-rear engine layout 2-door supercar, but with something different under the carbon-fiber shell. The early cars received a 4.7L twin-turbocharged V8, and later cars were fitted with a 5.0L twin-turbo V8. Power is delivered to the rear wheels via a seven-speed dual-clutch transmission. Several variations of the Agera were built, including the R, S, One:1, RS, and the Final Edition. In 2017, the Agera was crowned "world's fastest production car." The Agera also reached new motoring heights by producing the One:1 variant, a car that achieved a power-to-weight ratio of one PS to one KG. In 2021 the Agera was replaced by the Jesko.