Its one of the better cars considering the lack of cars on the scheme and inflated advance payments at the moment.
As @Noels suggests the Bayon is 120bhp, the max for under 25’s for petrol and diesel. If you were to choose an EV under 25’s are allowed a maximum 140bhp and ABI group 21 i.e Kona 39kw premium se which is basically equivalent to the Ultimate.