2010 Audi S4: More of the same... in a completely different way

[Ghostbat]

Originally Posted by nthfinity Supercharged FSI engine, confusingly named TFSI despite it not being turbo. (Audi explains that T no longer stands for turbo any more...) HaHA, German FTL. Just when you have a firm handle on all the abbreviation and technical wizardry names, they decide that a previous moniker no longer applies.

"mechanical turbocharging" according to Audi. You can read more here;

http://www.audi.com/audi/com/en2/abo..._S4_Avant.html