AUTOart Signature: 1/18 Koenigsegg CCX. For anyone who does not know what the CCX is, you are in for a treat. For 11 years, the McLaren F1 has held the title of fastest production car in the world. Then out came Koenigsegg, a Swedish company with the intention to build one of the fastest cars ever made. In 2005, the CCR became the next fastest car in the world. Then Bugatti came out and made the Veyron. Koenigsegg then built this. The CCX.