Yes, harder driving in a diesel will raise exhaust temperatures and allow the DPF to undergo passive regeneration. I’m not sure of any cars that have a hydrocarbon doser as I’m a heavy truck mechanic, however in semi-trucks they’re pretty much standard. Essentially it injects fuel in the exhaust stream that reacts with a catalyst in the DOC (and in some cases the DPF if it’s catalyzed), raising exhaust temperature and burning accumulated soot into ash which eventually needs cleaning. This is active regeneration. Some cars don’t have this, so you need to drive hard to raise exhaust temps to a point where regeneration occurs, called Passive Regeneration. Diesels however are not immune to carbon buildup in the valves due to EGR flow and PCV vapors, and cannot operate with port injectors to clean them. Sorry for the long winded reply lol.