The inline six in the previous ///M3 weighed approximately 470 lbs. By comparison, the higher displacement LS6 weighs 450 lbs. has a lower center of gravity and has a smaller footprint in the engine bay (meaning it can be positioned further back in the same car). The new V8 in the ///M3 weighs 445 lbs. but is already top heavy compared to the LS engines. A big twin turbo setup will add further weight to either, and while it will increase the gas mileage a turbo does not have the longevity of a naturally aspirated engine, so there is a significant trade-off.
My STS-V creates way more heat than my 1990 Turbo Grand prix V6
Not only is the heat an issue, but turbos cause other failure as well (I speak from flat cams, blown up air boxes, fried clutches and busted halfshafts to back up my comments). So not only would a TTV6 be very expensive it would be more prone to failure than say, oh I dunno... A V8...
I can agree upon the heat (not that it cannot be dealt with), but it is exaggerated to say blowing up airboxes, clutches and halfshafts have anything to do with a turbo...
Besides, practically all diesels in europe are turbos and a lot of other petrol cars are too (Audi, Mercedes, Saab, Subaru, Alfa Romeo, etc.). They do not have notorious problems. But I do not blame you for not knowing. The US carmakers haven't been active in turbo technology. Indeed, they just created more engine volume for more power...
Ah well, maybe you may open your eyes eventually.
For the US market there's not much point in force feeding a V6 when we can buy a big fat sweet sounding torque loaded V8. A V6TT would probaly make sense in other parts of the world, but since the our government doesn't penalize us for displacement or tax gas heavily, we don't have to worry about such things. Even if a V6TT was available in a CTS I'd still buy one with a V8.
Even if I open my eyes a V6TT or a diesel just doesn't make the right sound when I step on the loud pedal.
If Obama and Pelosi have their way we'll be over here driving eco friendly Trabants engineered and built by GM. :vomit:
On a brighter note, I'm going to have a look at a 1975 Fleetwood Brougham, low miles, original paint, top and interior that appears to be immaculate. I need 500 Cubic Inches! Drool, drool. I don't know why I sold my '73 Eldo Convertible. :hmm:
Now here's a guy that really didn't like his Turbo.
well, Ford got ahead of you. How sad...