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Old 10-12-2012, 04:42 PM   #9 (permalink)
Master EcoModder
Join Date: Jan 2012
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spyder2 - '00 Toyota MR2 Spyder
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I thought diesel engines are more expensive than gasoline engines even without the expensive emissions equipment?

Spark ignition engines are really not as evil as some people would like to make them out to be, they just need a few improvements here and there which will come with time. Toyota thinks they can hit 45% peak thermal efficiency with streetworthy spark ignition engines :shrug:
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