Audi cars have a very distinctive body shape and headlights. The Audi also have a specially built engine and chassis. These features make Audi unique and immediately identifiable.
The 2015 Audi TT has an inline 4 engine.
The 2010 Audi TTS has an inline 4 engine.
The 2014 Audi TTS has an inline 4 engine.
The 2011 Audi TT has an inline 4 engine.
The 2009 Audi TTS has an inline 4 engine.
The 2012 Audi TTS has an inline 4 engine.
The 2013 Audi TT has an inline 4 engine.
The 2010 Audi S6 has a V10 engine.
The 2009 Audi A8 has a V8 engine.
The 2014 Audi S6 has a V8 engine.
The 2010 Audi Q7 has a V6 engine.