But see, since a supercharger is always on, even at idle and startup, it tears up your engine. A car the relies on high psi supercharged power will have an engine life about 30% less than a turbo'd car. And if all Nissans break at 100k miles (hypothetically) with a turbo charger, then you will only get 70k miles supercharged. Then when you think that after depreciation, oil, gas, tires, and everything else a company adds up when they pay you per mile, it costs $.38 a mile. So if had a job that you drove a lot for, like a salesman, then those 30k miles at 38 cents a pop will cost you $11,400. And me personally, I'd rather have the 30k miles and drive through those last miles than have to buy a new car sooner.
-Jeff
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