Another Discussion Thread

Audi’s AAN 20V 5cyl turbo.
http://www.pistenbulli.franken.de/images/turbomotor.jpg

Any version of VAG’s TDI. I have found that even people who hate VWs are still fans of this engine.

BMWs S52 and S54

The Porsche 951 2.5L turbo 4 cyl is a pretty incredible engine.