scott speedster s30 Ultegra - value nearly new?

wix

Hi -i wondered if anyone could help me, i have seen a scott speedster s30 for sale, apparently only ridden a few times and up for £500. I have asked the question whether its 105 or Ultegra Ltd edition and yet to hear a reply, while i know £500 will be a good buy for my first bike for the Ultegra, i wonder if anyone has this bike and can comment or comment on the difference between 105 & Ultegra.

Thanks, in advance, Wix