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How much more does it cost?
The few grams of aluminum used in an iPhone are irrelevant in the grand scheme of things. Just like a 30% more expensive battery that is 10% smaller doesn't scale up from iPhone size to the 640lb battery in the leaf.
Does it scale up to make solar panel frames or an all aluminum car body?
I say for something like a solar panel, make them as cheaply as possible, natural gas, coal who cares, they go carbon negative after a few years as long as they don't get smashed.
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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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