Quote:
Originally Posted by
LawrenceMD 
electronic kill switch kicking in as low as 5,000-6,000 RPM in the diesel engines because of the massive torque.
I'm guessing that's the rev limiter, just like in the Jetta. That's so you can't overrev the engine by just holding the gas pedal down. Diesels have pretty low redlines, so their rev limiters are set lower.
However, you can still mess up a car with the so-called "money shift" by downshifting into a lower gear when you are near redline in a higher gear. This mechanically forces the engine to overrev, and there is nothing software can do about it. For example, the E36 M3's shifting mechanism had a tendency to rotate under load, so that 2nd gear appeared where 4th gear used to be from the driver's perspective. There were some number of engines destroyed when someone thought they were upshifting at redline in 3rd to 4th gear, but instead shifted into 2nd.
Quote:
Originally Posted by
Douglas 
Personally I tend to believe that "manual" transmissions are headed more or less universally towards electronically-controlled manuals; e.g. paddle/button shifting with genuine clutch or dual-clutch shifting.
I also believe automatic transmissions will increasingly be CVT transmissions.
But these are the musings of a not particularly well-read guy when it comes to this stuff.
I believe the 1st part for conventional cars. Not so sure about the 2nd part for autos. Automatics will get more gears, along with clutch lockups so they're more efficient. Already, many automatic (slushbox) cars get better mileage than their stick shift versions.
If hybrids or electric become popular, then the whole game changes. For hybrids, you will either have a serial hybrid (Volt, kinda), in which case, gears aren't needed since an electric motor will drive the wheels. For parallel hybrids (Prius), both engines need to drive the wheels, so the gearbox will be more complicated and probably managed automatically by a computer. Electric cars don't really need to change gears. There are exceptions, but they tend to be extreme cars (eg. Porsche 918 or BMW i8)