Sorry to bump an old thread but I just came across this and had to comment..
I guess I am the 'one' who purchased a 2013 Sirrus Limited SL4
BUT...
It's hands down the best bike I have ever owned! It's a road bike that happens to have a flat bar.. I LOVE flat bars! I have a bad back and drop down cause me some back problems after 30 or so miles. I can do a century on this bike with no back issues whatsoever..
I know the so called 'hardcore' cyclist laugh at flat bars and I honestly will never understand why but that's a another topic I suppose..
I bought one, I love it, and in hindsight, I'd buy it again in a second!
To the OP, if you can find one (only 300 were made) buy it! The prices have came down quite a bit now and some can still be found in the $3,500 range..
Here is a link to the product page:
http://www.specialized.com/us/en/bik...ited-sl4#specs
Edit to add photo of my bike>