How Much Should a Car Dealership Spend on Digital Marketing?
The benchmark number is easy to find. NADA Data puts average dealership advertising spend at roughly $586,000 a year, or about $739 per vehicle sold, with digital now claiming close to 75% of that budget. The commonly cited range is 6 to 7% of gross profit.
If you're below that, the conventional advice is to spend more. If you're above it, the advice is to cut. Neither is right on its own, because the benchmark answers the wrong question.
What the number doesn't tell you
Two stores can spend identically as a percentage of gross and land in completely different places. One is running $27,000 a month with a disciplined lead-to-sale process and knows exactly what each channel produced last week. The other is running the same $27,000 across the same channels with nobody checking whether spend and inventory are still pointed at each other.
The percentage-of-gross benchmark measures input. It says nothing about whether the input is being watched.
A better question than "how much"
Before adjusting the number up or down, ask three things your budget can't answer by itself:
Where did last month's spend actually go, channel by channel? Not the invoice total — the split across SEM, SEO, third-party listings, and social, and whether that split still matches where your leads are actually converting.
What's the cost per sale, not cost per lead? A channel with a low cost per lead and a terrible close rate can be more expensive per sale than a channel with the opposite profile. Most dealer reporting stops at the lead.
Is the budget still aligned with inventory? Spend built around a mix you carried in Q1 doesn't automatically follow you into Q3 if your inventory shifted. Nobody re-checks this on a rolling basis; it gets set once and drifts.
Where the 6–7% range actually helps
It's a reasonable planning input for a new store or a budget reset — a starting point, not a target to defend. A dealership generating $400,000 a month in gross profit landing around $24,000–$28,000 in ad spend is a sane place to start the year. It's a much worse tool for judging whether this month's spend is working, because that's a question about execution, not allocation.
The actual leak
Most dealers can tell you their total spend to the dollar. Fewer can tell you, without pulling a report and waiting a day, which channel is underperforming right now and what changed. That gap — not the percentage — is where budget gets wasted. A dealer spending 5% of gross with someone watching it daily will usually outperform a dealer spending 8% with nobody checking.
Astra watches spend against lead quality and inventory continuously, so the question stops being "are we at 6%" and starts being "is this dollar still doing what it did last month." Control Center is the data layer that makes that comparison possible across every channel at once, not just the one platform whose dashboard you happen to have open.
