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Wheels - 13 or 14 for better efficiency?
The 14 inch will reduce rpm by 4% but the 13 weighs 5 or 6 pounds less with the tire on, for more than 20 pounds less for all four. And lighter wheels should give a smoother ride.
The tough part is the car will be used for both long road trips and in town driving. Maybe 2 sets of wheels are called for?
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