How much should a car dealership spend on marketing?

Why a single percentage misleads

Advertising-to-gross and cost-per-vehicle-sold benchmarks circulate widely, but they average across stores with different brands, markets, inventory positions and competitive intensity. A rural single-point store and an urban metro group do not share a correct number, and treating a quoted average as a target moves budget for the wrong reason.

Separate media from management

The spend a dealer should scrutinise first is the split between working media and agency or tool fees. When they are bundled, a percentage-of-spend arrangement quietly rewards spending more, and the store cannot tell whether it is buying media or management. Require both as separate line items.

Budget follows measurement, not the reverse

A budget is only as good as the attribution behind it. Without honest matching of ad click to CRM lead to sold vehicle, spend chases the dashboard that flatters the loudest vendor. Fix measurement first, then let cost per sold and incremental lift direct where the next dollar goes.

Protect the owned assets

How much you spend matters less than what you keep. Dealer-owned ad accounts, first-party data, audiences and website content mean the spend builds a durable asset rather than renting one from an agency. Confirm ownership before scaling any budget.

A worked approach for one store

List spending by channel for the last twelve months with sold vehicles credited to each from the CRM and DMS. Calculate cost per sold vehicle, including fees.

Identify the channels above and below the store's own average. Move a small share of budget from the weakest to a test in the strongest, review in a quarter and repeat.

This approach uses your numbers, not an average.

Questions to bring to the budget meeting

What did each channel produce last year? Which numbers can we verify independently?

What are the fees and who receives them? What co-op is available and what does it require?

Which commitments end this year? What test do we want to run?

Written answers make the budget a decision instead of a routine renewal.