The Audi S lineup is not a world filled with many choices. Sure, you can pick your poison in terms of which S vehicle you want, but you do not have a say in which engine is mounted under the hood. However, it seems the upcoming Audi S6 and S7 might be poised to break with that tradition.

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Rumor has it that the more athletic versions of the A6 and A7 will be offered with a choice of engines. The standard engine for both cars is slated to be a turbocharged 4.0-liter V8 with around 450 horsepower, but Audi is reportedly going to offer up a diesel, as well, marking the first time such an engine has been offered with an S-branded vehicle. This 3.0-liter turbodiesel V6 should be good for 300 horsepower and 450 pound-feet of torque.
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