http://www.caranddriver.com/reviews...rs5_vs._2010_bmw_m3_2011_cadillac_cts-v-video
http://www.caranddriver.com/reviews/car/10q2/2011_audi_rs5-first_drive_review
http://www.caranddriver.com/reviews/car/10q2/2011_audi_rs5-first_drive_review
Here are the overall grades of the cars that the magazine uses to determine the winner of the contest:
BMW M3 | CTS-V | RS5, all coupes!
VEHICLE
DRIVER COMFORT 10 | 7 | 8
ERGONOMICS 8 | 8 | 8
REAR-SEAT COMFORT 4 | 2 | 3
REAR-SEAT SPACE 5 | 5 | 4
TRUNK SPACE 5 | 5 | 5
FEATURES/AMENITIES 10 | 10 | 9
FIT AND FINISH 9 | 7 | 10
INTERIOR STYLING 8 | 8 | 9
EXTERIOR STYLING 8 | 8 | 9
REBATES/EXTRAS 2 | 1 | 0
AS-TESTED PRICE 18 | 20 | 15
SUB TOTAL 87 | 81 | 80
POWERTRAIN
1/4 MILE ACCELERATION 19 | 20 | 19
FLEXIBILITY 4 | 5 | 3
FUEL ECONOMY 10 | 7 | 9
ENGINE NVH 10 | 7 | 10
TRANSMISSION 9 | 7 | 9
SUB TOTAL 52 | 46 | 50
CHASSIS
PERFORMANCE 20 | 18 | 20
STEERING FEEL 9 | 10 | 7
BRAKE FEEL 9 | 10 | 8
HANDLING 10 | 9 | 7
RIDE 8 | 9 | 8
SUB TOTAL 56 | 56 | 50
EXPERIENCE
FUN TO DRIVE 25 | 22 | 19
GRAND TOTAL: 220 | 205 | 199
Even factoring out the subjective "Fun to Drive" category the victory was decisive. The overall owner experience is more than just numbers hence the grading categories. Enjoy.
(Left column is the RS5, center is the M3, and the rightmost is the CTS-V)