Quote:
Originally Posted by IRONICK
Yeahh, they have a 5-door body ...
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OK, now you've lost me entirely. I've never seen that the number of door closures has an impact on car aero. My point re the Leaf is that it's a squareback hatch, much like the Golf.
Basically car shapes with different aero behaviour can be divided into:
- notchbacks (eg sedans)
- squarebacks (most moden hatches and wagons)
- fastbacks (eg coupes).
I again suggest that if the rear undertray can be sloped upwards towards the rear, it's more likely than not to reduce drag and lift over having the rear undertray horizontal.
In fact, if you look under many of today's cars, you can see virtual diffusers often being formed by the shape of the spare wheel well, transverse rear muffler, and of course rear undertray (where fitted).