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You can't make a car with low drag without it being a hatchback. And low drag is key to reasonable battery size.
by greglindahl 11y ago
You can't make a car with low drag without it being a hatchback. And low drag is key to reasonable battery size.
- reportingsjr 11y agoYep, the design is called a K-tail. I've really started getting used to it and don't mind it at all any more.
- manav 11y agoTrue. Some design elements still seem strange to me, but perhaps it was optimized for efficiency?. There is no front grille for instance. While there is no need for one on an electric car, the Tesla still has an indent for one.
- Corrado 11y agoI think part of the front end design was shaped by laws requiring a human safe zone in the front of the car. My understanding is that every car on the road must not push a human under the car but up and over the hood. Maybe that's why the front end has that indent.
- aerovistae 11y agoI believe you, but can you provide a source or explanation for that insight?
- cheald 11y agohttps://en.wikipedia.org/wiki/Kammback#Aerodynamics https://en.wikipedia.org/wiki/Kammback#Aerodynamics
- dingaling 11y agoThe optimum subsonic shape is a hemisperhical nose with a long tail tapering to a point ( like an ice-cream cornette on its side, with the dome of ice-cream heading into the wind ). The K-tail is an abbreviation of that impractical-for-cars long tail which gives most of the effect for much less effort. The Tatra T77 was an attempt to implement the optimum form though even then the tail was somewhat abbreviated: http://tatra77.com/ http://tatra77.com/
- aaimnr 11y agoDrop of water is the best comparison, as its shape is a direct result of aerodynamic optimisation.
- ino 11y agoThe drop of water is not teardrop shaped. http://pmm.nasa.gov/education/articles/shape-of-a-raindrop http://pmm.nasa.gov/education/articles/shape-of-a-raindrop http://water.usgs.gov/edu/raindropshape.html http://water.usgs.gov/edu/raindropshape.html
- CamperBob2 11y agoIt's a shame it's not a hatchback. It looks like it would make a very natural one.