Most dealership Meta Ads accounts run some combination of interest targeting, lookalike audiences, and retargeting without a clear sense of what each one is actually supposed to accomplish. Understanding the distinct job of each audience type makes it much easier to diagnose why a campaign is underperforming.
Interest targeting: casting a deliberate net
Interest-based targeting reaches people based on stated interests and behavior, like automotive content engagement or related categories. It's the broadest of the three audience types and works best for awareness, introducing your dealership to people who haven't engaged with you yet but fit a relevant profile.
Lookalike audiences: finding more people like your best customers
Lookalike audiences use Meta's modeling to find new people who resemble an existing audience you provide, ideally past buyers rather than just past leads. A lookalike built from actual buyers tends to produce meaningfully better quality than one built from a broader leads list, since it's modeling on people who actually converted, not just people who showed initial interest.
Retargeting: the highest-intent audience you already have
Retargeting reaches people who've already engaged with your dealership, whether that's visiting your website, watching a video, or engaging with a previous ad. This audience already knows who you are, which means retargeting creative can go further into specifics, financing, direct comparisons, urgency, than cold audience creative should.
Diagnosing which audience type is underperforming
If cost-per-lead is high across the board, interest targeting is often too broad or poorly matched to your actual buyer profile. If lookalike audiences underperform, check whether the source audience is genuinely high-quality, built from real buyers, not just any lead. If retargeting isn't converting, the issue is more likely creative or offer than the audience itself, since these are people already familiar with the dealership.
Using all three together, not just the one that seems easiest
A healthy Meta Ads structure typically uses interest and lookalike audiences to bring in new people, and retargeting to convert the ones who showed interest but didn't act yet. Running only cold audience campaigns without retargeting leaves a lot of warm, already-interested traffic unaddressed.
