Q: One V6 possesses the (S4) and the other one sports a 4 speed transmission. The S4 averages 26 hwy and the 4 speed boasts a 29 mpg hwy. What is the difference between these V6's? They are both 3.5 liters. Both of these transmissions are Auto. And yes, they are both 3.5 liters. I am looking at an older car, 2005 to 2007.
A: The only manual transmission offered on the g6 is with the 3.6l not the 3.5 now that may of changed with 2008 model year