RUF

RUF is a car company founded by Alois Ruf Sr. in 1939. This car company originally sold buses and is a gas stations for everyday use, not the purpose of RUF right now. This company got a big change when Alois Ruf Jr, his son, got the company and got interested of Porsche vehicles, and tuning them, eventually making the RUF CTR(Yellowbird), which broke the world's fastest super car record at that time.

Why RUF is so special in Asphalt game series is due to the fact that the Porsche license is already being taken by Need for Speed series by Electronic Arts(EA), and Gameloft has to find another Porsche-derived vehicle anyways. However, GL is now not only using RUF as their alternatives, but other vehicles, seen in the Winter trailer.