Originally posted by IRingTwyce:
As far as the sidewalls, it's my opinion that they're open for testing and evaluation purposes. If they were closed, there would be no way to check for damage or deterioration of the spokes without removing the tire completely from the wheel. I'm sure that production versions would have sidewalls, though I'd bet that they'd produce an open version too. It has it's own appeal...the car kind of looks like it's riding on air. Closest we'll get to hover cars for ages! 
 I got it, someone needs to invent a clear rubber that can be used for tires. Then enclose the "tweel" with the clear rubber and also use air to benefit from the normal tires comfort, but gain the ability to run flat or with very little air in the tire.
The combination of the tweel and normal air tire might decrease the number of accidents on the highways from the resulting blown tire.
My ride(Cardomain link) :
'95 Contour 16V Zetec DOHC, Teal , ATX
Born on Sep. 4, 1995
86+ miles
*LEDs mods are on their way!*
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