So I went for a short drive at modest speed yesterday in a 1750 TBi ti. Well actually, I drove the best part of 100 miles spanking the pants off it....
Overall, I'm impressed. It actally feels more zingy than the 3.2. The turbo gives a definite sense of urgency, while the 3.2 is a bit faster but more subtle in getting there. "A" road overtaking is fantastic.
Downside is 2WD. The roads were quite greasy yesterday, but even so the traction control was more busy than I expected. On lumpy streets the front end felt a bit skittery under power with rapid steering input. General grip felt excellent around roundabouts etc, though. I suspect part of this is lower weight and lower ride height. In fact it did generally feel nimbler than mine, which I suspect is mostly weight related. I expected the 19"s to be quite harsh, but I drove through some of Glasgow's more potholed streets without any issues.
It needs to be worked a wee bit more. In the V6, I find myself skipping gears (2->4 in town, 3->6 on motorway sliproads), where I felt the TBi needed each gear to be used. That's more laziness on my part though. Needs a bit more throttle to get things moving at low speed, but that's just a habit thing (V6 car park maneouvring generally only needs clutch control, no throttle).
As to fuel consumption, even driven hard, on motorway, A road and around town, I still got 27mpg. Marvellous.
Clearly it doesn't sound like a V6, just a bit of whine from the turbo. But I'm not too bothered about that (unless you're going through a tunnel with the window down, the soundproofing in the car means that you don't hear too much of the V6 anyway).
Inside, the ti spec cabin is good. I prefer the aluminium to what's in my Lusso. Seats are good, very supportive. Some nice wee tweaks compared to my 2006 car also.
The upshot is...my carbonio black 1750TBi ti is coming my way in about two weeks...