@ ProDarwin: The stock wheels are over 22 lbs each, as are the stock front brake rotors. The stock tires are almost 26 lbs, and the stock tire/rim combo weighs 48-49 lbs. The driveshaft is well over 40 lbs, and entry-level replacements knock almost 15 lbs off of that (high-end replacements drop the driveshaft weight down to about 10-15 lbs). There are also random pulleys and other modifications that will drop a pound or so here or there. I already dropped over 3 lbs per corner just by switching to my current tires.
@ Old Tele Man: That's kind of what I was referring to. If a 3,500 lb car is traveling 55 mph North bound and then must take a corner that shifts the direction East or West bound (still at 55 mph), wouldn't that require more energy than just a 5-10 mph acceleration?
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