New to the forum and BRAND new owner of a pearl (Cabernet interior) 350 F Sport as of this past Saturday. I noticed this thread and faced many of the same questions as the original poster. I attended the DC Car show thinking the E350/A6 was for me (former owner of 06 IS350). I got in the E350 and felt like I was in a 65,000 Honda Accord (interior-wise. Never drove it). Loved the A6, however for the difference in cost, could not justify it. Absolutely love the new ride.