My understanding here is that real world gas mileage figures for this car are much lower than expected with actual highway driving because the small engine just has to work so hard to keep up.
If you are mostly concerned with fuel economy and want another car to keep the miles off of your Porsche, have you considered a diesel? There are many new ones coming out over the next couple of years. I personally am a big fan – you can get all of the fuel economy of a hybrid with the robustness of a diesel engine and none of the unknowns of purchasing a car powered by a transitional technology.
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