You might wanna read what happened to DCT gears recently in US market after "trying and testing".. .
Aston Martin CEO said: "It’s an imperfect beast, and somehow or other we’ve managed to surround it with this idea that it’s super quick and that shift shock is good, and it’s mythical,” he said. “A good conventional automatic gearbox like the ZF is cheaper, which is absurd when you think that the manual gearbox has survived because it is meant to be the less expensive option, but there’s so much technology loaded onto a [dual-clutch, computer-controlled gearbox] to make it work. It’s heavier as well, which is another disadvantage, but the real issue is the gearchange itself. It’s actually now faster in a [planetary] automatic, because you can control the torque. That means ultimately your zero-to-60-mph times are quicker with an auto, which takes away all of the marketing puff for the dual-clutch."
REF ARTICLE= https://www.caranddriver.com/news/a20697840/aston-martin-ceo-predicts-the-demise-of-dual-clutch-transmissions/
CNET experts said: "This year DCT's will be found in about 8.5 percent of all new cars shipped globally but only about 5 percent of new cars sold in the US where traditional automatic transmissions have a dominant 73 percent market share. The DCT's rarity in US cars isn't so much due to its failing but to the traditional automatic's strengths: What used to be derided as a "slushbox" is today a transmission with firm shifts, many gears, the best smoothness of all transmission types and a manufacturing scale that results in lower costs. The DCT remains a specialty product that costs more to offer, tends to be a little jerkier in everyday driving and doesn't offer a clear benefit to the average car buyer."
REF ARTICLE= https://www.cnet.com/roadshow/news/what-happened-to-the-dual-clutch-transmission/