max speed is 100 mph (or 160 km/h). According to the sound, the train seems to have an older type of motor where changing of frequencies is not variable. Even though VF was long available together with Stadler Flirt, some train manufacturers like Siemens sometimes prefer older frequency generatorsf for railway vehicles.
The motor sound very similar to a UK 2000s desiro . I.e a class 350 but just a louder version. I won't be suprised if they use a similar motor . Maybe I'm wrong