That's interesting.
About a month ago I visited the only closely located Specialized retailer and tried out what I believe was a current Sirrus Elite Alloy model, mainly for sizing reasons.
The salesman I spoke to was rather adamant about dissuading potential customers to go wider than the stock 30mm Specialized Espoir tyres these bikes are fitted with, even going so far as questioning the validity of a 32mm alternative.
He voiced the same reservation about the Cannondale Quick Disc models, which also sport 30mm (Schwalbe) tyres.

This is in fact the main reason I have now stricken these two brands off my list, as I'm looking for a fitness/hybrid bike that ideally supports 35mm tyres with fenders installed.
So far the only options I've found that come stock with this width is Cube (SL Road), BMC (Alpenchallenge), Merida (Crossway Urban) and Koga (Supermetro).