Drive-by-wire is a technology used in vehicles that replaces traditional mechanical linkages with electronic controls. Instead of using physical cables and rods to connect the steering wheel, accelerator, and brakes to their respective systems, sensors detect the driver's inputs and send electronic signals to actuators that perform the necessary actions. This system enhances vehicle performance and safety by allowing for more precise control and quicker response times. Additionally, drive-by-wire can enable advanced features like adaptive cruise control and automated driving, as it allows for easier integration of computer systems into vehicle operation.