We recently bought a 159 SW ti from Reseach Alfa and when looking at the V5 it stated Lusso rather than ti. I called Mangoletsi in Knutsford and spoke to a very helpful lady in their Service Dept. She checked on the Alfa system and confirmed ours, according to the records held by Alfa in Italy was a ti and that the ti's are Lusso based with the ti bits then added.
Might be worth a call to Mangoletsi or another Alfa Dealer
The Ti seats front and rear have the Alfa Romeo logo embossed on the seats, so I'd call it a fake or mis-selling. Looks like a very nice example though.
Whenever there is a clone of a sport model with the body kit that wasn't originally available on the options list other than with the original sport model then I'm always suspicious as to the reasons behind it. In my experience I've found when looking at cars like this that they usually have signs of accident damage where the sport bodykit would have been fitted at repair time as it probably doesn't cost a whole lot more to do.
Yeh, it's a limited edition, made after quantum of solace. It's got the dark Ti wheels, no body kit, no Ti seats or red stitching. Can be a good buy, there are some more details on the LE in the 'definitive buyers guide' in the stickies.
It's also about 1/2 a mile from my house, if you are still interested May be able to take a look on a weekend