One guy driving my car didn't even bother trying 5th, because he was expecting a large jump to a super-economy gear. As engines become more flexible, there's more need for wide range transmissions, but not so much for close ratios. Adding more intermediate gears adds weight for a small performance gain. I'd like to see the usual cruising gear be direct drive, too. The customer might want to choose between having that as the top gear, or the next-to-top, for the urbanite.
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