arcosine: FYI, the XFi camshaft is for - shifts torque band lower in the rev range. Not going plow fields with the Suzuki engine, but it helps some.
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I have wondered if the 1st generation car has less frontal area than the 2nd. Don't know.... wait, now I know:
Vehicle Coefficient of Drag List - EcoModder
The 2nd gen car apparently has 1 sq. ft. more frontal area.