The MB SLK is .35
The G35 Sedan is about .29
The Vette is also around .29
The LS430 is around .28 or .29

I'm pretty sure about these numbers.

 

From my observations, sports cars don't in general have markedly lower Cd's. Don't have an authoritative reason. But I suppose part is the large tires. Perhaps also a desire to ingest a lot of air for the engine and radiator? Both will lead to more drag. Most all convertibles top-down have very poor Cd's. If you want to see bad, try a Caterham Super 7! Some of the luxo tourers have very low Cd's. Presumably in part to reduce wind noise.

AFAIK, the Insight has the lowest Cd of any production vehicle (EV1 was considerably lower) at about 0.25-0.26. Teeny tires, reduced rear track, etc. Low Cd*A was one of the design goals, at the expense of traditional measures of performance.

 

I remember it being high, but that's HIGH!!! Wow...

 

Rag tops always have a worse Cd than a similarly shaped hard top, and the S2000 suffers more due to the angle of the windshield being so upright. It's not a mistake, the S2000's Cd is quite high. It makes you think of what the top speed of the S2k would be like if it had a Cd of .29 or so. Of course, it wouldn't look like the same car, so I'm happy how it is.

 

The new NSX is down to a 0.29 now I think.

 

what's the cd of s2000 with the hardtop?

 

from the mazda web site

the miata has Coefficient of Drag (Cd) (top up) of 0.37 ...

just thought i will throw it here ...

 

oh also
how will the honda OEM body kit affact the drag coefficient??