they do a 12SR and a 15sr-a
They look the same. The 12SR is more popular though and the tuners over there do more parts for the 1.2 engine.
The interior in the 15SR-a is a lot better and has proper bucket seats.
Performance wise the 15sr-a is faster due to a slighty tuned engine from autech. dont know the bhp but it has high lift cams and low compression pistons and a performance exhaust. I would guess some where new the 120-130bhp mark (maybe more) + it'll be tuned for the high RON over there.
It also has uprated suspension. Which includes dampers, struts etc etc....whilst the 160sr's uprated suspension only included stiffer springs lol.
Personally if i was going to buy a new k12 and (which i might) and had the choice between the 15SR-A or the 160SR (i would also include the 12SR) i would get one the JDM models.