Quattro:
1. "Ur-Quattro" was the name of a model. It was a coupe.
2. Quattro is also the marketing name of all of Audi's AWD technologies. It has two main variants: the TORSEN-based system for longitudinally mounted engine layout and the HALDEX-based system for transversely mounted engine layout.
The S4 I mentioned is of course a sedan model. Its AWD technology is the most sophsticated among sedans.
1. "Ur-Quattro" was the name of a model. It was a coupe.
2. Quattro is also the marketing name of all of Audi's AWD technologies. It has two main variants: the TORSEN-based system for longitudinally mounted engine layout and the HALDEX-based system for transversely mounted engine layout.
The S4 I mentioned is of course a sedan model. Its AWD technology is the most sophsticated among sedans.
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