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Lexus RX Gas Cost Hybrid vs Nonhybrid
This is a neat calculator I found online...
unless you're very conscious about carbon foot print (that's a very good thing), don't bother to go to the site.
But if cost is your #1, it tells you when you get even. You just input miles driven every month, cost of gas, gas mileage, and cost of the cars (usually $5k difference)
The things it does not take into consideration: the costs to fix your hybrid car (I assume it's more but less over the years as Lexus figures things out, etc)