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Weight vs CD
I vote lighter weight. The CD value hurts economy as the car goes faster, while weight must always be moved by the power source. Around town weight is a bigger concern but CD has little effect at in-town speeds. YES, I understand CD is always a consideration, but slower driving is a large portion of daily use. On a long-haul vehicle CD is much more of a concern...but so is weight. Weight is always a concern on long-haul or in town. An old adage heard at Bonneville is, it takes twice as much power to go from 200 mph to 250 mph as it does to get to 200 mph. Drag becomes a major factor as speed increases. Most of us never go 200 mph. I once went 140 mph in a Ford powered Cobra, and I believe that is my fastest ride.
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