Audi is the one that couldn't light up LEDs, not me. It's a matter of getting electricity to them lol. Fifty-fifty shot at it working: it either does or it doesn't. It didn't. Making a DSG work is more than a matter of simply checking your grounds and plugging it in.
You saw
1 car with a tail light not working & concluded that a transmission can't be trusted.
It is not 50-50, if for the 1 Q7 you saw with 1 ring out, there are 5,000+ more that are working.
Not in normal traffic.
On a race track or drag stip, yes. When you pull out of a gas station into traffic that is moving A LOT faster than you anticipated...heh...have fun. It'll upshift when you want it to downshift, even though you're foot is on the floor, and it'll contemplate when you start hammering the right flappy paddle.
Wrong. In fact, wrong for almost any decent car now-a-days. Most cars know when the gas pedal is floored, they need to downshift to pick up power.
I have yet to see a new car & hear about it upshifting when given gas after pulling out in traffic.
In auto mode, these things suck. In manual mode, they're marginally better as most are mounted on the column a-la Ferrari. WTF is the point if the car makes you 'shuffle steer' in order to shift? Doing that is a mess as is trying to upshift into second in a tight corner.
DCTs in auto mode work just fine. They don't shuffle steer at all. In fact, most semi-autos when applied to a sports-oriented car will not "shuffle steer", either.
They look good on paper and in those shiny brochures, but on the street, where they'll be in 'auto' mode 90% of the time, they suck. And the novelty of using the paddles to shift on the road will wear out quicker than a conventional clutch.
I'll put money on it, that you have never driven a car with DCT unless it was a Volkswagen. Thus, I doubt you have any clue as to how they operate under an Auto-Mode.
Manual transmissions, for a driver's car, is mandatory. If you want something smooth and convenient, a garden variety locking torque converter auto box is fine. A DCT is a poor attempt to please all the people (and enviros) all the time.
DCT has been around since the 1980's. Let's know why the transmission was built before we talk out the rear & assume that it was built to please people.
They're not 'engaging' like a proper manual, they're frustrating like a slushbox. Doesn't really matter on the brand either.
Oh really? So Ferrari, McLaren, Porsche, BMW, Mercedes, Bugatti, & Nissan have frustrating DCTs?
I await proof of that.
It's quite clear you have never driven a car with a proper DCT implemented. And your only argument keeps coming back to, "What if you have to make a quick acceleration", ignoring the fact that by the time you row 2 gears to speed up, a DCT-equipped car will have caught up, or that most cars with a DCT will have completely left traffic behind.
Your argument is mixing up DCT & Single Clutch Semi-Auto transmissions. Dual Clutch Transmissions are around for performance. They have been since the 80's when Porsche invented them. Besides Volkswagens & a few others, the only cars on the market with a DCT-equipped gearbox are performance cars. It won't be until 2011 that more, mainstream production cars really start to use the system, themselves.