Google Search Ad Assets for Car Dealers: How to Build a Better Ad
- David
- Mar 21
- 7 min read
Updated: 2 days ago
Contrary to what most people think, the difference between a search ad that dominates the search result page and one that barely shows up isn’t often budget. It’s the ad assets. Dealers who fill out every available asset give Google more to work with, take up more real estate, and typically pay less per click than competitors who don't. Google can only show what you give it. The fewer assets you provide, the less it has to work with.
This post walks through every core asset type, what each one does, and what a fully built dealer search ad should look like.
What Every Dealer Search Ad Should Have
A fully built dealer search ad includes:
The top ad, Napleton's Schaumburg Mazda, is running a full asset build: image, sitelinks, callout text, and a call button. The second ad has an image but fewer assets. By the third, the ad is noticeably stripped down. Same search, same page, but very different real estate.
Ad Assets vs. Ad Extensions — Is There a Difference?
No. Google rebranded ad extensions to ad assets roughly a year ago. They're the same thing. If someone hands you an "extension report," that's your asset report. If they're talking about "sitelink extensions" or "callout extensions," they mean sitelink assets and callout assets. The function hasn't changed, just the name. When you're auditing what's been set up, ask specifically to see the asset report and what's filled in.
What Goes Into a Search Ad? Core vs. Assets
Every search ad has a core: a URL, a headline, and a description. That's the minimum Google needs to run an ad.
Everything else is an asset, including sitelinks, callouts, structured snippets, images, price listings, your star rating, your phone number, and your address. These are optional in the sense that Google doesn't require them, but they're not optional if you want a competitive ad.
This is why the ad in position one often looks dramatically better than the one in position four. It's not always that the top advertiser paid more. It's that they gave Google more assets to display, so Google gave them more real estate. The ad takes up more of the page, includes more information, and gives the searcher more reasons to click before they ever reach a competitor.
Headlines and Descriptions in Search Ads
Headlines are the large blue links at the top of a search ad. You can add up to 15. Google will show between one and three at a time, depending on the auction, the device, and the relevance of each combination.
The reason to write as many headlines as possible (ideally close to 15) is that Google tests combinations to find what performs best. The more options you give it, the more it can optimize. If you only write three headlines, Google has very little to work with
Descriptions sit below the headlines in smaller text. They're less visually prominent, but they carry the supporting detail — your offer, your differentiator, a reason to act. You can write up to four. Write at least two.
Character limits apply to everything. Headlines max out at 30 characters. Descriptions at 90. Write tight and lead with what matters most, because Google may truncate or rearrange depending on the format.
Sitelink Assets — the Most Valuable Asset for Dealers
Sitelinks are the additional clickable links that appear below the main ad. Each one has its own headline and can link to a specific page on your site.
For a dealership, common sitelinks include New Inventory, Pre-Owned Inventory, Schedule Service, and Value Your Trade. The value here is straightforward: instead of sending everyone to your homepage, you can send a searcher looking to trade in their vehicle directly to your trade evaluation tool, or someone looking for service directly to your scheduling page.
On desktop, sitelinks appear as a row of links beneath the ad copy. On mobile, they stack or scroll. Either way, they extend the footprint of your ad and give the searcher more entry points, which is why sitelinks consistently drive meaningful interaction volume when they're set up correctly.
Callout Assets
Callouts are short, non-clickable phrases that appear beneath your ad description. They're not linked anywhere. Their job is to add supporting details that reinforce your offer or differentiate your store.
For dealers, examples include "Fast and Easy Financing," "Large New and Pre-Owned Inventory," or "Current Model Year Offers." They're brief by design (Google limits them to 25 characters each), so they need to be punchy and specific, not generic.
Callouts look slightly different from your main description text. They are smaller and in a different shade of colour, but they're still readable and add to the ad's overall density and credibility.
Structured Snippet Assets
Structured snippets answer a specific question: what exactly is this advertiser offering? They use a preset header — Models, Brands, Services, Types — followed by a list of values you fill in.
For a dealership, the Models header is the most useful, so list your top three to five models here. This tells a searcher immediately that you carry what they're looking for before they click.
For the best results, align your structured snippets with your other assets. If your price asset showcases your top models, your structured snippet should list the same models. Consistency across assets makes the ad feel more intentional and complete.
Price Assets
Price assets let you list specific vehicles at specific prices directly in the ad. Each entry includes a vehicle name, a price, a brief description, and a link to the relevant inventory page.
For dealers, this is an effective way to surface loss leaders and current offers. Someone searching for a Mazda CX-5 can see your price before they click, which means the clicks you do get are from people who already know what you're offering.
Character limits apply here, too. Keep vehicle descriptions concise and make sure the linked pages match what you're advertising. A price asset linking to a general inventory page rather than the specific model page is a missed opportunity.
Location and Call Assets
These two assets handle the basics of local discoverability and direct contact.
The location asset pulls from your Google Business Profile and displays your address in the ad. On desktop, it shows as a text address. On mobile, it typically appears as a maps link. For any dealership running local search campaigns, this should be active.
The call asset adds your phone number. On desktop, it displays as a clickable number. On mobile, it renders as a tap-to-call button. It’s important to include this asset because mobile users searching "Mazda dealer near me" are often ready to call. Making that as frictionless as possible is worth the two minutes it takes to set up.
Image Assets
Image assets add a visual element to your search ad — a photo of your dealership, a specific vehicle, or a brand image. They appear when Google determines an image will improve the ad's performance in a given placement.
On desktop, the image appears alongside the ad text. On mobile, it appears above or alongside, depending on the format. The visual contrast alone makes the ad stand out on a page of text-only results.
To add one, you need the image hosted at a URL, either on your website or uploaded directly to Google Ads. It's a low-effort addition with a meaningful visual impact.
Advertiser Rating Asset
The advertiser rating is the star rating that appears beneath your ad. It’s the same gold stars you see on Google Business Profile listings. For any local business, but especially dealerships where reputation carries significant weight, this is one of the most impactful assets available.
To enable it, your Google Business Profile needs to be connected to your Google Ads account, and you need to apply for the rating asset through Google. It requires a minimum number of reviews and goes through an approval process.
It builds immediate trust with searchers. They see four or five stars before they click, and a well-structured ad with strong assets (including the rating), which typically results in a higher Quality Score and lowers your average cost per click. It's one of the most underutilized assets for dealerships, and one of the most worth pursuing.
Why Unfilled Assets Cost You More
An ad with minimal assets doesn't just look worse, it also performs worse and costs more.
Google uses Quality Score to determine ad placement and cost per click. Quality Score factors in expected click-through rate, ad relevance, and landing page experience. A fully built ad with strong assets signals to Google that you've invested in the user experience. That typically translates to better placement at a lower cost per click than a competitor running the same bid with a sparse ad.
A competitor spending the same amount as you but using all their assets will likely outrank you and pay less per click. If you're working with an agency or vendor, ask them to pull the asset report and walk you through what's filled in. It's a basic audit that reveals a lot. Larger vendors in particular often underinvest in asset setup because it's time-consuming and easy to overlook, but the impact on performance is huge.
What Google Doesn't Guarantee
Filling out all your assets doesn't mean they'll all appear every time. Google decides which combination of assets to show in each auction based on relevance, bid, device, and the specific search query.
What it does mean is that Google has options. The more you give it, the more it can tailor the ad to match what a searcher is looking for in that moment. An ad with 15 headlines, four descriptions, and eight asset types gives Google a lot to work with. An ad with three headlines and no assets gives it almost nothing.
Your goal isn't to control exactly what shows. Your goal is to make sure Google never has to show a stripped-down version of your ad because you didn't provide enough.
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