A dual-clutch transmission (DCT) is a type of automatic transmission that uses two separate clutches for odd and even gear sets. This design allows for faster gear shifts compared to traditional automatic transmissions, as one gear can be pre-selected while another is engaged. This results in smoother acceleration and improved performance. DCTs are commonly found in high-performance vehicles and some everyday cars, offering a balance between manual control and automatic convenience. They can enhance fuel efficiency and provide a sportier driving experience, making them popular among car enthusiasts and manufacturers alike.