Loading...

How a Sales-Based Attribution Approach Can Drive Sales

Published: June 29, 2018 by James Maguire

There are many factors attributing to the success of dealerships. When it comes to dealers, empirical guidance is a great way to study effective advertising. Experian brought Auto, Targeting, and the Dealer Positioning System capabilities together in a nationwide study to answer the ultimate question: what drives sales?

The answers can be found in Experian’s 2018 Attribution Study. This is a wide-ranging, dealer-focused sales-driven attribution study that analyzed a few key variables. We deployed 187,701 tracking pixels to devices in 41,012 distinct households, focused on 15 digital metrics to learn about shopper behavior, and tied that digital shopping data to 2,436 vehicle sales.

An industry first, Experian’s ability to combine automotive registration data, sales data, and website analytics and online behavior data puts us in a position to do something that very few companies can do. We use the household identifiers to not only see who bought a car and who bought specifically from a participating dealer, but also how they shopped the dealer’s site. Our ability to accurately identify a household’s digital behavior is based on the fact that we are a source compiler of the data and have it sitting under one roof.  Others that attempt to provide this type of insight need to contract out for registrations, sales data imports from the dealership, website analytics, household identifiers, or all the above, which generally adds time to the insights.

Using our sales-based approach, we can deliver unbiased attribution. Sales-based attribution is attributing credit to different advertising sources/campaigns based on actual vehicle sales – including those targeted consumers that may have purchased outside of the dealership. This is the Holy Grail of attribution for car dealers since it ties an offline activity such as buying a car back to the online advertising that’s taking up most their budgets every month. Because of that offline-online disconnect, sales-based attribution is difficult.

Other automotive attribution models are typically focused on website conversions or website behavior – “what advertising can I attribute website leads to” (conversions) or “what advertising is driving users who follow the behavior that I think shows they’re likely to buy from my dealership” (website behavior.)

What are the takeaways?

We found three takeaways from our study. First off, we look at shopper behavior instead of isolating KPIs. Later we will discuss how traditional website metrics do not tie-in to sales. Second, we look at optimizing your paid advertising. Finally, we look at third-party investments. Although third parties drive sales, they may not be your sales.

Looking at shopper behavior, not isolated KPI’s

Traditional website metrics don’t tell the sales story for dealers. Traditional conversion stats are equal for buyers vs. all traffic such as VDPs or page views What this means is on average, buyers converted at a lower rate than overall website traffic. Looking solely at form submissions, hours and directions pageviews, and mobile clicks-to-call, don’t give the best view of what advertising is driving sales. With that, 98% of buyer traffic never submitted a form or went to the hours and directions page. This is a typical website conversion that dealers, vendors, and advertising agencies focus on.  Since traditional web metrics don’t tell the story, there is another way. These are called High-Value Users, or HVU. They purchase at a 34% higher rate than overall traffic although they make up 11% of all traffic.

High-Value Users are an Experian derived KPI. What makes someone an HVU are four different measurements.

  • They must visit a website at least three times
  • Spend at least six minutes on the site in total
  • View at least eight pages in total
  • View at least one VDP

High-Value Users correlates to sales better than Vehicle Detail Page or VDP metrics. In this study, the correlation for VDP was measured at .595 which is rated a medium correlation. Meanwhile, HVU scored a .698 which is rated a high correlation. Looking at many different behavioral KPIs, like we do with our High-Value User (HVU) metric, correlates better to sales than just looking at how many VDPs you had. Driving more VDPs won’t necessarily help sales. But driving more HVUs is more likely to correlate with more sales. This also gets back to the attribution discussion above: Experian sales-based attribution is the best, and Experian’s HVUs are a good method for web-based attribution.

From this attribution study, High-Value Users are a vital group for dealers to utilize. In our next post, we will go over the second and third takeaways from the attribution study: optimizing paid advertising and evaluating third-party investments.

Related Posts

We’re excited to share that Experian Automotive’s client Hamlin & Associates and Honda World have been named winners of the 2025 Automotive News / Ad Age Global Automotive Marketing Award for Best Use of Data — an honor that celebrates meaningful, measurable impact. Why this work stood out Hamlin & Associates' client, Honda World of Louisville, KY, faced a clear challenge: re-engage customers and recover declining service revenue, particularly for vehicles with open recalls. Hamlin & Associates approached the problem with a simple belief: clean, accurate data leads to better outcomes for customers and dealerships alike. They began with data hygiene, then enriched each vehicle record using Experian Automotive’s Recall VIN Verification solution. This created a precise view of who owned which vehicles, which recalls were still open, and when repairs could be completed — all essential to a smooth customer experience. A smarter, more human outreach strategy Over the course of a year, Hamlin delivered four waves of direct mail designed to cut through the noise. Each letter: Spoke directly to the customer Highlighted their specific vehicle Explained the recall in clear language Showed how easy it was to book a free repair The result was a data-driven communication plan grounded in trust and simplicity — and it worked Results that show what’s possible 26% response rate 1,953 repair orders $811,834 in service revenue Thousands of customers are now driving safer vehicles These outcomes reflect more than campaign performance. They demonstrate what happens when dealers, agencies, and data partners collaborate to guide individuals toward safer, more informed decisions. In their words John Hamlin, Hamlin & Associates:“Clean data builds trust. When we combine our hygiene process with Experian Automotive insights, dealers uncover opportunities they never knew they had.” Mike Porro, Honda World:“They keep it simple, and data-driven ‘simple’ gets done. We follow the process, train our staff, and see the results.” Looking ahead We’re proud to celebrate Hamlin & Associates and Honda World for showing what’s achievable when data, insight, and clear communication come together. Their work helps people stay safe, strengthens customer relationships, and sets a new standard for recall outreach. Congratulations to the entire team — and here’s to helping even more drivers move forward Learn more about how to enrich your first-party data with Recall VIN Verification insights!

Published: December 18, 2025 by Adrian Aguiluz

Experian Automotive Series | What Auto Marketers Are Prioritizing in the Second Half of 2025 As we close out our four-part series on what auto marketers are prioritizing in the second half of 2025, we’re shifting gears from strategy to execution. It’s time to explore how marketers are operationalizing data, seeking clarity, and building emotional connections that deepen relationships with customers. With the end of the year’s competitive automotive landscape, clarity and connection aren’t just buzzwords—they’re the cornerstones of growth and loyalty for 2026. Let’s start by exploring how clarity empowers today’s marketers to steer their strategies with control. Clarity: Putting marketers in the driver’s seat Data-guided auto marketers who leverage data insights have a clearer understanding of where consumers are on their car-buying journey. You can learn whether car buyers are gearing up for: A longer commute and want an electric vehicle (or a hybrid vehicle).1 Expanding their family and want a top-tier safety rating with cargo space. Factoring in market trends and wanting to be more economical.2 Creating a new and loyal customer base requires dealers, marketers, and OEMs to focus on clarity and connection. This will be more relevant than ever in the final days of 2025. Gone are the days when dealers and agencies used platforms and tools they did not understand. More businesses are simplifying their services and products by offering guides, Artificial Intelligence (AI) tools, tutorials, consultants, and webinars. At Experian Automotive, we're here to do just that, bringing clarity to our auto solutions, such as the Experian Marketing Engine (EME). While the EME tool has robust and dynamic data, two of our most widely used features — AutoAudiences and AutoInsights — stand out for their impact. Let’s break them down in the simplest way: AutoInsights helps marketers define where, what, and how. AutoAudiences helps reach who to target and when they might be in the market. For further clarification, savvy marketers leverage AutoInsights to strategize and understand their market, then activate AutoAudiences to curate marketing opportunities. With these tools empowering clarity, it’s equally important to focus on building genuine connections with car shoppers. Connection: Personalized experiences that drive sales Building a strong connection starts by truly understanding what consumers need and where they are on their car-buying journey. It’s important to know how consumers plan to use their vehicle and how they have serviced their cars in the past (or how they plan to service them in the future). By focusing on these details, marketers and dealerships can create more meaningful relationships and deliver helpful, relevant experiences that customers value. On the journey to better connections, consider your customers’ communication preferences, 2026 plans, and affordability.3 “Human connection...separates good stores from great ones,” notes Dealer Principal, Matt Birckhead at Sir Walter Chevrolet4 , while General Manager, Michael Wood at Jaguar Land Rover Virginia Beach collaborates with his Digital Director, Ryan Montville, to generate vehicle specs and feature descriptions that connect emotionally with target buyers 5 Key Takeaway: Automotive marketers who leverage data-informed clarity and authentic customer connection are best positioned to drive growth and loyalty in the final days of 2025 into 2026. By using innovative tools like Experian Marketing Engine, focusing on consumer needs, and personalizing every interaction, dealerships, agencies, and OEMs can optimize campaigns and foster lasting relationships. Mastering clarity with data and building emotional connections are the keys to success in automotive marketing today. Ready for clarity and connection with Experian data? Lead the way in creating customer-first experiences that fuel long-term growth. Connect with Experian Automotive and start driving measurable impact. Learn More https://www.coxautoinc.com/insights-hub/q3-2025-ev-sales-report-commentary/ https://www.experian.com/automotive/auto-credit-webinar-form https://news.dealershipguy.com/p/inside-q4-s-new-vehicle-trends-and-how-dealers-are-adjusting-2025-10-28 https://news.dealershipguy.com/p/one-price-vs-negotiation-what-four-operators-say-really-builds-trust-and-gross-2025-10-16 https://news.dealershipguy.com/p/5-powerful-chatgpt-hacks-car-dealers-are-using-to-supercharge-their-business-insights-2025-09-19

Published: November 11, 2025 by Chanté O’Neill

Electric vehicles (EVs) are the topic of conversation in the automotive industry, but we’re continuing to see another fuel type pick up speed. With consumer demand shifting and drivers exploring more fuel-efficient options, the automotive market is leaning back into hybrids. In fact, new retail hybrid registrations grew to 11.5% through Q3 2024, from 9.5% through Q3 2023, according to Experian’s Automotive Market Trends Report: Q3 2024. Meanwhile, EVs increased from 7.7% to 8.2% year-over-year and gasoline vehicles declined to 70.4% this year, from 72.7% last year. Despite EVs gaining notable attention over recent years, some consumers may be factoring in the benefits of opting for a hybrid, such as the convenience of driving a longer distance without facing challenges as charging stations remain limited. As more manufacturers adapt to consumer needs and roll out additional vehicles, data shows 9.1% of 2024 model year vehicles in operation were attributed to hybrids, while 6.2% of 2024 model years were EVs through Q3 2024. Having more models enter the market has shifted the hybrid and plug-in hybrid electric vehicle (PHEV) market share, with the Toyota Camry making up 12.5% of the market share this quarter, a notable increase from 2.4% last year. On the other hand, the Jeep Wrangler 4xe went from having 4.5% of market share last year to 2.4% through Q3 2024. With many consumers continuing to have some concerns around EVs such as range anxiety and charging times, they’re seeking a more practical solution for their daily driving needs. The balance of fuel options provides more convenience—making hybrids an appealing choice for those wanting an EV alternative. It’s important for manufacturers to stay ahead of the competitive market as it’s constantly evolving. Leveraging the most current data can provide solutions that address both feasibility and consumer preference. To learn more about vehicle market trends, view the full Automotive Market Trends Report: Q3 2024 presentation on demand.

Published: January 10, 2025 by John Howard

Subscribe to our Auto blog

Enter your name and email for the latest updates.

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.