Here's a conversation that happens in dealerships across BC every month: the GSM asks how the advertising is performing. Someone pulls up a report showing impressions, click-through rates, and "engagement." Nobody can answer the actual question — did the ads sell cars?
Most BC dealerships spend $8,000–$15,000/month on digital advertising. Most can't connect that spend to specific vehicles sold. That's not a technology problem. It's a measurement problem — and it's easier to fix than most dealers assume.
This is the framework.
Why Attribution Is Hard for Dealers (And Why Most Give Up)
Automotive purchase journeys are long. According to Cox Automotive's 2025 Car Buyer Journey Study, the average car buyer spends 14+ hours researching online before visiting a dealership. They see a Facebook ad, Google the vehicle, visit your website, see a retargeted display ad, visit your lot, and then buy — all over 3–6 weeks.
That means no single ad gets clear credit. The Facebook ad that first introduced them to your F-150 is invisible in your CRM. The Google ad they clicked the day before they called is what gets recorded.
This is called the last-click attribution problem — and it causes dealers to systematically undervalue the channels that create demand (Facebook, display, YouTube) while overvaluing the channels that capture it (Google search).
Most dealers respond to this problem by giving up on attribution entirely and just watching total lead volume. That's better than nothing — but it means your budget decisions are based on bad signal.
The 3 Numbers That Actually Matter
Before building any tracking system, agree on which numbers you're measuring. For dealerships, ROI tracking comes down to three:
1. Cost Per Lead (CPL)
How much did you spend to generate each qualified lead? This is channel-level — you want CPL for Google, CPL for Facebook, CPL for Marketplace, separately.
Use VELO's CPL Calculator to set your CPL targets before you start tracking. Without a target, you can't evaluate whether your actual CPL is good or bad.
2. Close Rate
What percentage of leads from each channel result in a sale? This matters because a $40 CPL from a channel that closes at 8% is worth far more than a $30 CPL from a channel that closes at 3%.
3. Cost Per Sale (CPS)
Divide your total ad spend by the number of vehicles sold from ad-attributed leads. This is the real number. A dealership spending $10,000/month and selling 20 attributed units has a $500 CPS — if gross margin per unit is $2,500, that's a 5:1 return.
A Simple Attribution Framework
You don't need enterprise analytics software. Here's what works for a single-rooftop or small group dealership:
Step 1: Assign UTM parameters to every ad link.
Every URL in your Facebook ads, Google ads, and email campaigns should include UTM parameters — small tags that tell your website analytics which channel sent the visitor.
Example: https://yourdealership.com/vehicles?utm_source=facebook&utm_medium=paid&utm_campaign=f150-summer
If your agency isn't doing this, ask why. It takes 10 minutes per campaign to set up and is the foundation of everything else.
Step 2: Use call tracking numbers.
Assign a unique phone number to each ad channel. Facebook ads get one number. Google ads get another. Your website gets another. When a call comes in, you know the source. Services like CallRail run $30–$60/month and eliminate an enormous source of attribution guesswork.
Step 3: Build a simple lead source field in your CRM.
When a lead comes in — phone call, form fill, walk-in — the sales team or BDC records the source. It doesn't have to be sophisticated: Google, Facebook, Marketplace, Referral, Walk-In. That's enough. The discipline of capturing this consistently is worth more than any software.
Step 4: Close the loop monthly.
Once a month: pull your leads by source from the CRM, match to deals closed that month, calculate CPL and close rate by channel. A spreadsheet takes 20 minutes. This is your attribution report.
The 5 Most Expensive Attribution Mistakes
1. Counting phone calls as leads without qualifying them.
Not every call is a lead. Vendors, wrong numbers, and existing customers calling service inflate your lead count and distort your CPL. Count only inbound calls from new prospects asking about vehicle purchase.
2. Not separating Google branded vs. non-branded search.
Clicks on your dealership name are from people who already know you — they'd have found you anyway. Including those in your Google Ads CPL inflates performance. Track branded and non-branded campaigns separately.
3. Attributing the sale to the last touchpoint only.
If someone clicked a Facebook ad 3 weeks before buying, and then clicked a Google search ad the day they called — Google gets 100% of the credit in most CRMs. This systematically underfunds Facebook. The fix: build a simple multi-touch note in your CRM deal record when buyers mention social media or display ads.
4. Letting the agency define what counts as a lead.
Some agencies count any form fill — including spam, trade-in-only requests, and "contact us" messages with no purchase intent. Get alignment on lead definition before you start comparing reports.
5. Measuring the wrong window.
A dealer who sees 20 leads from Facebook in Month 1 and 6 closed deals may think it's underperforming — but those 14 remaining leads may close in Month 2 or 3. Car purchase cycles are long. Measure cost per sale over 90 days, not 30.
What Good Reporting Actually Looks Like
A monthly report from your agency or in-house team should answer five questions, every month, without you having to ask:
- How many leads did each channel generate this month?
- What was the CPL by channel?
- How does this month compare to last month and the same month last year?
- Which campaigns within each channel performed above/below target?
- What changed, and why?
If your current reporting is a PDF full of impressions, reach, and frequency numbers with no CPL breakdown — that report is being built for aesthetics, not accountability.
For context on what healthy CPL benchmarks look like for BC dealerships, see What's a Good Cost Per Lead for Car Dealerships in 2026? and How to Lower Your Cost Per Lead on Facebook Ads for Car Dealerships.
The One Thing That Unlocks Everything
All of this comes back to a single question: can you connect ad spend to sold vehicles?
If yes — even imperfectly — you have something to optimize. If no, you're flying blind.
The first step is always CPL by channel. Set up UTM tracking, get call tracking running, and build the lead source field in your CRM. Do those three things and you'll know more about your advertising ROI than 90% of BC dealerships.
We'll look at your current tracking setup, identify where attribution is breaking down, and show you exactly what's driving your leads — and what isn't.