I was surprised on switching from the 737 to the airbus that the latter did not have automatic V1 calls. On the 737 the V1 call started at V1 -3 kts, but i have no idea if that was a company preset or boeing setting. With the usual 1 or 2 knot difference between V1 and Rotate there is the choice of either calling V1 a tad early, or Rotate a bit late. That said, i much prefer an automatic callout, the aircraft calls all other kind of stuff out, why not V1?