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The 2.2 four, 2.7 five and 3.2 six are all from the same family, just with cylinders cut off. I guess this saves costs on development and production as they are 75% the same.
However the in-line six did not fit in the C-class and ML, so now they have a separate V6 instead.
Now that diesels are more popular, they can probably afford to engineer separate V6s to the four cylinders.
Anyone have power and torque figures for these engines? Do they have less in lesser models: this is something I have noticed in Audi and BMW. the 730d has loads of torque, but the 330d some 60-70 lb/ft less IIRC but with the same power. It's disappointing as it has not that much extra over a 320d.
Same with Audi's V6 TDI, it feels very lacking in torque next to their 1.9 and 2.0 TDI units, and in torque/litre of engine capacity ratio they are lacking, at least in the A4 and A6.
Russ
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