forgot to tell you all a funny story, when i arrived at the dealership, one of the service guys says to another, "we don't fix aston martins, do we?"

 

I was experiencing the EXACT same problem/symptom for months. I took it in to the dealership a few times (since it was still under warranty) before they finally fixed the problem. They had to replace the intercooler pump and the intake air temp assembly. Now it finally rides like it should!

Good luck with getting yours fixed (if you haven't already).