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Only need 2 channels of measurement. The wind tunnel speed and the force pushing back on the car.
The most efficient tire, we already narrowed it down to 2 in the USA, it's either mitchlin energy saver A/S or ecopia 442 or whatever the designation is now.
My money is on the energy saver A/S. If you want to sell a car in the US it has to have a dot approved "tyre".
They could just forget about wastefully covering the car with virtue signaling solar panels and just produce the world's most efficient EV now while gas prices are still ridiculously high.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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