Is DSG+TSI only open to the public? What do other cars use?

Yes, DSG+TSI is a patented technology of Volkswagen. DSG is the power transfer of Volkswagen. Dual clutch automatic gearbox combines the advantages of manual gearbox and automatic gearbox. It has no torque converter or clutch pedal. The application of dual clutch can make the gearbox have two gears engaged at the same time. Before shifting gears, the DSG gearbox has been shifted to the next gear in advance, so there is only lightning-fast "double clutch" switching action when shifting gears, and the action is fast and smooth without any power interruption, which brings about the improvement of vehicle power performance.

The DSG gearbox also has manual and automatic shift modes. During driving, the two shift modes can be switched at any time. In addition, the system efficiency of DSG gearbox is higher. Slight power loss and shorter shift time can make the whole shift process achieve the highest efficiency, thus reducing energy loss and improving acceleration and vehicle fuel economy. Compared with the traditional automatic gearbox with hydraulic torque converter, DSG gearbox can reduce vehicle fuel consumption by as much as 10%~20%.

DSG dual-clutch automatic transmission can improve power performance, bring more driving pleasure and more comfortable driving experience to drivers, and fully satisfy consumers' dual pursuit of driving pleasure and fuel saving!

DSG dual clutch automatic gearbox has become an important technical development trend of gearbox technology.

TSI refers to the turbocharged direct injection technology of the engine. I don't want to explain too much, but Volkswagen's turbocharged direct injection engine, which is TSI, is also divided into single turbocharging and double turbocharging. Only imported original high-end Volkswagen adopts double turbocharging, while domestic sagitar, lavida, golf and so on. Only single turbocharging technology is used, but the logo is slightly different. The last letter is red, which is usually single turbocharging.

I don't know if you are satisfied with this answer.