what you can do stick with a A12 and work the sh1t out of it, i came up beside a 1200ute years back in my vr commodore at the lights, i said how does she go...he replied il show ya, i was bloody shocked, all it was a 1.2 with downdraft webby...id tell you if i had my time over tossing up between a CA or A series ...id go the A