One or two days?
- Passenger mirror delete/replacement with interior convex is probably good for ~1-1.5%, and only takes a few minutes. I'd do it.
- Temp rear wheel skirts, duct taped on, good for another % or two: 30 minutes work
- Cowl block, if it's not going to be hot where you're driving (for ventilation, I mean)
- What about vertical spoilers ("trip strips") in the rear corner radii of the bumper cover/tail light area, a la Chevy Volt?
Has anyone done any testing on an air dam on that car? I'd be reluctant to throw one on, simply assuming that it's going to help.
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