Aerodynamic Drag Coefficient on 2006 IS
06-11-05, 01:07 AM
#31
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So according to that equation, it is of little use to have Cd of say .25 if you have a huge frontal area. Yes the LS might have a low Cd but the total drag of the IS will probably be less due to a smaller frontal area. Also, a Vette with a rather chunky sounding Cd of .30 will probably have even less total drag due the real small frontal area.
Serisously, how **** must one be to base a car buying decision on Cd?
Serisously, how **** must one be to base a car buying decision on Cd?
06-11-05, 05:08 AM
#32
Super Moderator
Nobody said anything about basing a car purchase on cd alone, it's just one of many aspects of the design & engineering of a car, it's too boring to just talk about 0-60 & quarter mile all the time 
06-11-05, 07:55 AM
#33
Racer
Thread Starter
Originally Posted by AmethySC
Nobody said anything about basing a car purchase on cd alone, it's just one of many aspects of the design & engineering of a car, it's too boring to just talk about 0-60 & quarter mile all the time
Agree.
I don't think anyone said they were basing their buying decision on this. I for one have learned alot just from this thread. It's not earth shattering. Like mentioned above just another aspect of design & engineering. Sometimes we forget that Lexus puts alot of work into design & engineering, we see the final product & think it just took them 2 months to make this when in essense it's years of research.
06-11-05, 11:04 AM
#34
Originally Posted by biker
So according to that equation, it is of little use to have Cd of say .25 if you have a huge frontal area. Yes the LS might have a low Cd but the total drag of the IS will probably be less due to a smaller frontal area. Also, a Vette with a rather chunky sounding Cd of .30 will probably have even less total drag due the real small frontal area.
Serisously, how **** must one be to base a car buying decision on Cd?
Serisously, how **** must one be to base a car buying decision on Cd?
06-11-05, 11:18 AM
#35
Racer
Thread Starter
On this pic it gives you an idea of how the hood lines are created & the 2 creases on each side of the hood, Is this an indication of how the Cd was designed? The way the side mirrors are almost tear drop shaped narrow (pointy) then angles wide.
I like the wide stance it presents with 18' tires will give it a more agressive look. Hopefully the 350 will have a sport pkg too.
I like the wide stance it presents with 18' tires will give it a more agressive look. Hopefully the 350 will have a sport pkg too.
06-11-05, 03:33 PM
#36
Guest
Posts: n/a
Originally Posted by biker
So according to that equation, it is of little use to have Cd of say .25 if you have a huge frontal area. Yes the LS might have a low Cd but the total drag of the IS will probably be less due to a smaller frontal area. Also, a Vette with a rather chunky sounding Cd of .30 will probably have even less total drag due the real small frontal area.
Serisously, how **** must one be to base a car buying decision on Cd?
Serisously, how **** must one be to base a car buying decision on Cd?
06-13-05, 01:41 AM
#37
Originally Posted by AmethySC
Do you think the LS430 look funny(specifically a funny butt) then ?
Some people slammed its boxy style so looks have nothing to do with it. The Ferrari's OTOH, with their aerodynamic looks, have high cd's in comparison.
Some people slammed its boxy style so looks have nothing to do with it. The Ferrari's OTOH, with their aerodynamic looks, have high cd's in comparison.
07-08-05, 04:10 PM
#38
Lexus Fanatic
Originally Posted by AmethySC
Just for comparison purpose, the coefficient of drag for :
2005 BMW 3 series - 0.31
2005 BMW 645 - 0.30
2005 BMW 545 - 0.29
2003 Porsche 911 -0.34
2005 Porsche 911 - 0.28
2005 Mercedes SL500 - 0.29
2005 Mercedes CL500 - 0.28
2005 Mercedes S500 - 0.27
2005 Audi A8 - 0.27
Ferrari F360 Modena - 0.33
Ferrari F430 - 0.33
2005 Acura NSX - 0.30
2004 Aston Martin Vanquish - 0.35
2004 Aston Martin DB9 - 0.34
2005 Jaguar XKR - 0.35
2005 Cadillac XLR - 0.31
2005 Nissan 350Z - 0.30
2005 Infiniti G35 coupe - 0.28, 0.29 without aero
2005 Infiniti G35 sedan - 0.27
2005 BMW 3 series - 0.31
2005 BMW 645 - 0.30
2005 BMW 545 - 0.29
2003 Porsche 911 -0.34
2005 Porsche 911 - 0.28
2005 Mercedes SL500 - 0.29
2005 Mercedes CL500 - 0.28
2005 Mercedes S500 - 0.27
2005 Audi A8 - 0.27
Ferrari F360 Modena - 0.33
Ferrari F430 - 0.33
2005 Acura NSX - 0.30
2004 Aston Martin Vanquish - 0.35
2004 Aston Martin DB9 - 0.34
2005 Jaguar XKR - 0.35
2005 Cadillac XLR - 0.31
2005 Nissan 350Z - 0.30
2005 Infiniti G35 coupe - 0.28, 0.29 without aero
2005 Infiniti G35 sedan - 0.27
to them.
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