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Originally Posted by Boxtaboy
It's strange because my wife's Audi A4 S-line has a Tiptronic also, but it always starts off in 1st gear (I can see it on the dash display), even in regular driving mode. To save gas, in D mode, it just upshifts faster than in Sport mode, but it starts off in 1st. Wonder why the Porsche tip or pdk starts in 2nd.
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The only thing the Porsche and Audi Tiptronics have in common is the name. Starting in 1st or 2nd is a software programming difference and a manufacturer's preference. GM is very good a getting vastly different behaviors out of the same transmission in different cars. They all suck, but to different degrees
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