Nice to see (hear) you back at this.
Interior sound is excellent. I personally love the muffled cabin sound. I find it to be engaging, without being over the top, it's immersive and touches the right frequencies. Decel off throttle can have more gain to it, if anything.
External sounds good, better than the original but I think you can improve on it. The throttle sounds good and triggers nicely when I jab it, but the exhaust is overly present in the high-frequencies and raspy, missing that mid-frequency bark these engines have when clearing their throats. However, we hear the S65 sing nonetheless and it sounds good.
I'm giving this 5 stars because it represents an overall improvement to my ears vs the original sounds. Keep up the good work!