Bruce

Here's another one i missed yesterday

Porsche Cayman S: .28

Imhotep Evil

Yes I know, higher numbers = not as good.

Matt

Its because of threads like this that 7.3 has so much Karma. This is really awesome.. Thanks a bundle. This is what enhances this site to a level that no other automotive forum has achieved. The M3 will have a higher drag coefficient than the 335i because of the wider stance, bigger tires, etc.

Centurion

I just saw this thread and as predicted the 911 is at the top. There you have it people, this is the reason why Porsche doesn't change the design/shape of the 911. It is becasue the shape has a very important function.

Bruce

You're welcome!

That's my plan, to create a level of data unheard of

Yannis

The teardrop is an ideal aerodynamic shape, since Porche 911 is designed to look almost like half a teardrop it's an obvious advantage.

Bruce

One i forgot to add, Aston Martin DB9 Coupe - .33

Matt

Well its working! Its almost as though this forum is becoming a resource, which pretty respectable IMHO.

Thats a really good point Luw...

Bruce

New:

.35 - Jaguar XKR, 2007

notic

some more numbers from Wikipedia:
* 0.7 to 1.1 - typical values for a Formula 1 car (downforce settings change for each circuit)
* 0.7 - Caterham Seven
* at least 0.6 - a typical truck
* 0.57 - Hummer H2, 2003
* 0.51 - Citroën 2CV
* over 0.5 - Dodge Viper
* 0.46 - Ford Mustang, 1979 (coupe)
* 0.44 - Ford Mustang, 1979 (fastback)
* 0.44 - Toyota Truck, 1990-1995

* 0.42 - Lamborghini Countach, 1974
* 0.42 - Triumph Spitfire Mk IV, 1971-1980
* 0.42 - Plymouth Duster, 1994

* 0.39 - Dodge Durango, 2004
* 0.39 - Triumph Spitfire, 1964-1970

* 0.38 - Volkswagen Beetle
* 0.38 - Mazda Miata, 1989

* 0.374 - Ford Capri Mk III, 1978-1986
* 0.372 - Ferrari F50, 1996
* 0.37 - Renault Twingo
* 0.36 - Eagle Talon, mid-1990s
* 0.36 - Citroën DS, 1955
* 0.36 - Ferrari Testarossa, 1986
* 0.36 - Opel GT, 1969
* 0.36 - Honda Civic, 2001
* 0.36 - Citroën CX, 1974 (the car was named after the term for drag coefficient)

* 0.355 - NSU Ro 80, 1967

* 0.34 - Ford Sierra, 1982
* 0.34 - Ferrari F40, 1987
* 0.34 - Chevrolet Caprice, 1994-1996
* 0.34 - Chevrolet Corvette Z06, 2006
* 0.338 - Chevrolet Camaro, 1995

* 0.33 - Dodge Charger, 2006
* 0.33 - Audi A3, 2006
* 0.33 - Subaru Impreza WRX STi, 2004
* 0.33 - Mazda RX-7 FC3C, 1987-91
* 0.33 - Citroën SM, 1970

* 0.32064 - Volkswagen GTI Mk V, 2006 (0.3216 with ground effects)
* 0.32 - Toyota Celica,1995-2005

* 0.31 - Citroën AX, 1986
* 0.31 - Citroën GS, 1970
* 0.31 - Eagle Vision
* 0.31 - Ford Falcon, 1995-1998
* 0.31 - Mazda RX-7 FC3S, 1986-91
* 0.31 - Renault 25, 1984
* 0.31 - Saab Sonett III, 1970
* 0.31 - Audi A4 B5, 1995-2000

* 0.30 - Audi 100, 1983
* 0.30 - BMW E90, 2006
* 0.30 - Porsche 996, 1997
* 0.30 - Saab 92, 1947

* 0.29 - Dodge Charger Daytona, 1969
* 0.29 - Honda CRX HF 1988
* 0.29 - Subaru XT, 1985
* 0.29 - BMW 8-Series, 1989
* 0.29 - Porsche Boxster, 2005
* 0.29 - Chevrolet Corvette, 2005
* 0.29 - Mazda RX-7 FC3S Aero Package, 1986-91
* 0.29 - Lexus LS 400, 1990
* 0.29 - Lancia Dedra, 1990-1998
* 0.29 - Honda Accord Hybrid, 2005
* 0.29 - Lotus Elite, 1958
* 0.29 - Mercedes-Benz W203 C-Class Coupe, 2001 - 2007

* 0.28 - Toyota Camry and sister model Lexus ES, 2005
* 0.28 - Porsche 997, 2004
* 0.28 - Renault 25 TS, 1984
* 0.28 - Saab 9-3, 2003

* 0.27 - Infiniti G35, 2002 (0.26 with "aero package")
* 0.27 - Mercedes-Benz W203 C-Class Sedan, 2001 - 2007
* 0.27 - Rumpler Tropfenwagen, 1921
* 0.27 - Toyota Camry Hybrid, 2007

* 0.26 - Alfa Romeo Disco Volante, 1952
* 0.26 - Hotchkiss Gregoire, 1951
* 0.26 - Lexus LS 430, 2001 (0.25 with air suspension)
* 0.26 - Mercedes-Benz W221 S-Class, 2006
* 0.26 - Toyota Prius, 2004
* 0.26 - Vauxhall Calibra, 1989

* 0.25 - Audi A2 1.2 TDI, 2001
* 0.25 - Dymaxion Car, 1933
* 0.25 - Honda Insight, 1999
* 0.25 - SmILE (an experimental car)

* 0.212 - Tatra T77 a, 1935

* 0.20 - Loremo Concept, 2006
* 0.20 - Opel Eco Speedster Concept, 2003

* 0.195 - General Motors EV1, 1996
* 0.19 - Alfa Romeo BAT Concept, 1953
* 0.19 - Dodge Intrepid ESX Concept , 1995
* 0.19 - Mercedes-Benz "Bionic Car" Concept, 2005 [6] (based on the boxfish)

* 0.16 - Daihatsu UFEIII Concept, 2005
* 0.16 - General Motors Precept Concept, 2000

* 0.14 - Fiat Turbina Concept, 1954

* 0.137 - Ford Probe V prototype, 1985
* 0.117 - Summers Brothers Goldenrod Bonneville race car, 1965