- Expert Insights on Tips using email marketing automation in the retail automotive environment to Nurture Customers to the fruition of a sale and ultimately increase an auto dealer's ROI. br br For Dealership General Managers br br From David Wolfensperger Car Sales Specialist 1 (513) 294-8767 br br David Wolfensperger is an expert in the area of Automotive Marketing - Both Front End Sales and Back End Service.