Stealth shoppers now make up over half of new car buyers. These buyers research online anonymously and never submit their contact information through dealership websites or forms. To regain influence over customers, dealerships need to embrace a 21st century internet experience by being available wherever and however customers want to communicate, including anonymously, and by responding helpfully without asking for personal information first. This will require changes to staffing, processes, and company culture, but can significantly increase sales by engaging the majority of today's car buyers.