I'm ready to give up the smart air suspension in order to upgrade to the 85D with coils. Will I regret that? I drove two cars back to back the other day and I felt the SAS was a little floaty for my liking. Ironically I drove an P85D with the smart air suspension. I tried a couple of insane launches and he accused me of not pushing the pedal down! The Valet mode was on and the service rep didn't have the password. My son was in the backseat and was disappointed he didn't get to experience the "launch". The 70D I drove with the coils was fun. Plenty fast, coils were fine. I felt really connected to the road. It was just starting to drizzle outside so I didn't get crazy, but I can't imagine what the 85D will be like.