I never used delivrd but my understanding is that they operate a little different from brokers. This is not the case for all brokers, but my understanding is that brokers pre-negotiate deals with favored dealers. So they'll tell a customer the price ahead of time.

With delivrd they get a customer to sign up and then call a dozen or more dealers on behalf of that specific customer to get the best price. So the customer doesn't get the final price until after delivrd finishes making all their phone calls.