@Molly Curry posted an article over on the blog listing all the well known Automotive Industry Conferences and Summits. Be sure to give Molly a shoutout in the comments for putting this together.
If you know of a conference or user summit that's missing from the list, feel free to add it into...
auto finance conference
automotive women conferencecardealerconferenceconferences
dealer service conferencedealer summit
dealeron conference
digital dealerconference
driving sales conference
drivingsales
fixed ops conference
jd power conference
used carconference
women in automotive