The CAF Oaris is a high speed train designed for a top speed of 350 km/h (217 mph) that originated in the AVI 2015 program funded by the Spanish state. It is being offered with four and eight cars and each car has two 660 kW traction motors in one bogie. It can operate under 25 kV AC and 3 kV DC, while its platform is also capable of 15 kV AC and 1.5 kV DC. The prototype was built for standard gauge, but was also designed to use either broad gauge or even variable gauge bogies. 

The prototype was tested from 2011 as RENFE class 105 and also reached the envisaged speed of 350 km/h. However, no orders were placed by RENFE. The only customer by now is the Norwegian Flytoget AS which ordered eight Oaris in 2015. Although planned for introduction in 2018, they were only fully ready for service in 2023. They also took part in the tender for Britain's high speed line HS2, but ultimately the design jointly developed by Alstom and Hitachi won.