Coca Cola Zone in the racing car?

[autolover]

Hi,everyone,I got some information about "Coca Cola Zone" in a book,it says:the Coca Cola area was narrower,due in part to a differrent progression of the exhausts,which were moved towards the rear.exhausts?specify where?I cannot see any Coca Cola shaped object!
Do me a favor,please? =D> could you explain it with a picture,figure it out in other color pen,and his purpose(function)?
Thank you!

[bhall]

The "Coca-Cola zone," I suppose you'd call it, is the area at the rear of the car that looks like the top of a Coke bottle.

[autolover]

thank you,but near the exhaust pipe?I dont mean a whole car.

[Giblet]

So Renault got it backwards and used the bottom of the bottle for nose of the R29.

[bar555]

I think that a more accurate comparison would be between the dolphin's body shape
, bottle nose ( car nose) , slimmer boddy closer to the tail ( sidepods ) and a horizontal wing-plane ( rear wing ) . Dolphin's dorshal fin resembles to the engine's shark fin

[Scotracer]

[xpensive]

Please correct me, but I'd like to believe that the expression is from 1984 to describe John Barnard's MP4-2, with the novel rear waistline and the ingenious "canard-wings" ahead of the wheels?

[benjabulle]

Please correct me, but I'd like to believe that the expression is from 1984 to describe John Barnard's MP4-2, with the novel rear waistline and the ingenious "canard-wings" ahead of the wheels?

Mp4/1C from 1983 :

http://www.gurneyflap.com/Resources/DSC_0531.jpg

[xpensive]

I stand corrected, that is a 1983 MP4/1 indeed, featuring both a rear-waist as well as front push-rods rather than the original rockers. But perhaps it is a MP4/1C, no?

[autolover]

I got it,its purpose?for aerodynamics or other?why or his advantage？ [-o< a complex question.

[axle]

It's entirely aerodynamic driven. Reduction in drag. The teardrop shape we see sensor units on planes and F1 cars using are as drag free as possible. The teardrop or raindrop shape (bulbous head with a cone shaped tail) is really low on drag and so the F1 cars adopted this shape to increase aero efficiency. It's limited though by the packaging of the mechanical parts within that area and the rules!

Because they can't reduce down the rear to a full teardrop shape it looks more like a coke bottle, hence the name.

[xpensive]

Originally at least, if you look at the McLaren MP4-1C above, the horizontal surfaces ("canard-wings") were there to create down-force, when the air-flow on top was slowed down by the rear-wheel compared to the faster flow underneath.