2.5L with two more cylinders would make a 3.75L. I think you meant 2.0L? But I agree completely, an inline 6 would definitely be sweet. The inherent balance of an inline 6 feels so refined. The NA 3.0L inline 6's from BMW are fantastic. Good low end torque, and the power delivery is very linear all the way to redline. They sound great too.According to what Ive heard, this engine will be the 2.5 with two more cylinders added , modular style. So it comes out as a 3.0 liter.
It will be intriguing. The SA 4 bangers are already smooth running. A six should be sweet