How often do friends/family call you for tech support?
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Re:Never (Score:4, Informative)
It's my understanding that typically, a manual car gets better gas mileage than an automatic, as has been linked in other replies. However, I think this may be because the automatic is at a disadvantage; they often have one less gear than their manual cousins. For example, I just looked up a Toyota Corolla; the base model is a 5-speed manual at 30 mpg, while the upgraded model is a 4-speed automatic at 29 mpg.
This isn't always true; I also looked at the Honda Accord; they offer a 6-speed manual and a 6-speed automatic, but the automatic only comes on a hungrier engine, so they can't be compared. They do offer a CVT as an upgrade to the manual though, and that does get better mileage.
I think it all comes down to price; usually, the automatic gearbox is gimped to get the price closer to the manual, since many people see the automatic gearbox as a necessity, not an upgrade. To save on costs, they use one less gear, and hence the source of the "manuals save gas" generalization.
Re:Never (Score:5, Informative)
"Classic" automatics get worse gas mileage, but CVT and dual-clutch (or "automated manual") get better mileage (with the latter providing faster shifts and better acceleration).
And here's [fueleconomy.gov] a better source. With actual studies listed at the bottom of the page.
Re:Never (Score:5, Informative)
The disadvantage automatics had in years past was lots and lots of friction. Old automatics where basically dozens of clutches that where rarely fully engaged until you get to top gear. Then you have the torque converter which transferred power through a fluid. Manual transmissions where more efficient because you had a hard clutch that was either engaged or not, just a hard link between the engine and transmission.
Modern DSG transmissions are basically 2 manual transmissions with an electronically actuated pair of clutches, all of the advantages of a manual without the slushyness of an automatic. CVT's *CAN* be more efficient (see Toyota Prius' planetary gear set http://eahart.com/prius/psd/ [eahart.com]), or it could be crap (see Nissan's metal v-belt with varying pulleys)...depends on the design.
I personally have a Prius for daily driving and a RX7 for weekend fun.
Re:Never (Score:2, Informative)
Moving the family to OSX however did. That was 3 years ago and there has not been a single tech support issue since then.
The question is whether this is because they have no problems, or because they're reluctant to call the person who inflicted OSX on them.
It's OS X not OSX, if you are going to troll this place with juvenile flaimbait, at least try to get your ancronyms right.