Jim 
2010 BMW 6 Series Convertible 650i 2dr Convertible (4.8L 8cyl 6A)
Buy the best- my 15th BMW
 This is my 55th car and my 15th BMW.  I have always driven BMW's,Mercedes as well as all the Japanese competitors. I bought my 10 650 Convertible when I actually went in to buy another M3 Convertible and have no regrets. I am a small person so was concerned about the size of the car (I am 5'8") I got the fully loaded Sport with every available option and got a fantastic deal. Just 2 days after I bought it, I took it on a 2000 mile road trip, what an amazing car! I averaged 24-26 MPG (at between 80-90 MPH) having coming from an 09 M3 Coupe, I do miss that punch that the M3 delivers, but my 650 handles very well and is quite quick.  The creature comforts are far superior to any competitors!