Working with dealerships across the US and internationally, I have noticed a scenario is common across almost every single one of them with very few exceptions. Service and parts, or Fixed Operations departments are the top revenue driver for most dealerships but it is given the least marketing resources to grow.
I think most of the struggle is that dealers do not know how to expand their marketing efforts outside of offline marketing (in the form of mailers with specials, for example) to increase this revenue generator.
Their “digital” marketing efforts may only be a newsletter with a service coupon or an email blast. However, there is no consistent marketing through the digital world for parts or service.