As to the Acura, a TL SH-AWD might have fit, but there are limits to how many cars we can handle logistically, and frankly, didn't think the TL would be competitive with these cars. As to its size, it is quite a bit longer than any of these, but the wheelbase is shorter than the A4 and 3 Series... Also, the pricing of the fully loaded TL would probably undercut even the C-Class - Acura is simply playing in a sub-luxury segment with Buick right now. TL or TSX vs Regal GS might be a more fitting comparo of FWD near-luxury.
Now you've given me something to b1tch about.
There is no conveivable way an Acura shopper would cross shop the TL with a Buick. Acura is still a Honda which is more associated with excellent engineering, awesome engines, sweet manual transmissions (and boy racers too) while Buick is still hopelessly stuck with the old man's car stigma. Two opposite spectrums.
Secondly, the TL is near luxury but so are entry level luxury compacts from ze Germans, let alone the Volvo which is labeled as "premium"
at best. The C-class is a leap behind the E-class in luxury, so Acura would fit quite nicely.
I think you are jumping to conclusions without giving the old timer a chance. The SH-AWD system is very good, the engine is potent, the manual is sweet and the interior appointments will easily rival the others. I'd vote it in and see how it fares. I doubt it would finish last.