Could somebody explain Audi Hold Assist?
"Hold assist. Holds the vehicle stationary for unlimited periods after stopping and prevents the vehicle rolling on hills and on gradients. The system is activated by push-button and allows the driver to drive away easily and comfortably without having to operate the electromechanical parking brake"
Sounds the same as the parking brake to me, unless you can put it on and leave it on. What are the differences and benefits?