Case study · Evaluative research · Vehicle Marketplace · Emerging verticals
Identifying Significant Roadblocks to New Product Adoption
Two rounds of research took a car-buying product from missing a basic page to not worth building. Leadership stopped the work within two weeks.
- My role
- Senior UX Researcher
- Team
- Me, Product, Design
- Timeline
- Round one in February 2025, round two in March 2025
- Participants
- 10 Experian users planning to buy a vehicle within a year, 5 per round
- Methods
- Moderated usability testing, after an earlier unmoderated concept test
- Tools
- Condens, TheyDo, Figma, Lyssna, Zoom
The short version
- Situation
- Experian planned to launch a vehicle marketplace, an all-in-one car buying experience for its users.
- What I did
- I ran moderated tests of two prototypes with Experian users in the market for a new vehicle. The first round paused an upcoming launch so a vehicle details page could be added. The second round showed that even with the page, users saw little reason to use it over any other car site.
- Result
- Product and development work, planned across numerous sprints, was cancelled within 2 weeks of sharing my findings, likely saving months of development time and effort.
Why research mattered
Experian planned to launch a vehicle marketplace, an all-in-one car buying experience for its users. I joined after conversations with the Marketplace UX design manager and the Emerging Verticals product manager.
The team expected the MVP to be light on features. What they initially wanted to learn was how users would feel about Experian offering a vehicle marketplace in general. The stakes were product and development work planned across numerous sprints.
Research approach
I had already tested the idea as a concept with unmoderated methods. Once a prototype existed, I moved to moderated usability testing, so I could ask follow-up questions about the whole experience and the value proposition as users reacted.
- Participants. Ten Experian users, five per round, all planning to buy a vehicle within a year, since they were already in or close to the purchasing decision.
- Scope. Two rounds, so the second could test what the first taught us. Round one tested the MVP prototype as the team planned to ship it, without a vehicle details page.
- Tradeoff. A light first version meant the prototype was missing things users expected. That was useful to learn, but it meant round one couldn't answer the value question on its own.
Key findings
1. A missing details page broke basic expectations
Users expected a page for each vehicle and were surprised not to find one. They called it table stakes for any vehicle marketplace and said they would quickly leave for a competitor that gave them timely, thorough information.
“I would have expected some type of like more details link or like something that would populate more specific details about the car”
2. “Request info” was slow, and the SSN request came too early
The only way to learn more was a button that sent users' details to a dealership. Waiting for a dealership to contact them felt slow and confusing, and many didn't understand why they were asked to confirm sensitive information, like their SSN, before they had a chance to even read about a car.
“I wish I could see for example like not request info, but like also see more info. Why can't I see more information?”
3. With the page added, personalization still fell short
Round two met the details-page expectations. A bigger gap showed up: users expected Experian to use its knowledge of their credit and financing to help them choose a car, and the tested designs only let them send their information to a dealership.
“I'm not really gathering how these vehicles are personalized to me or you know, specific towards me or geared towards me.”
4. Financing was the expected differentiator
Users trust Experian as the custodian of their credit and financial data, and car financing can be a cumbersome process. They wanted far more than a lead generation tool for dealerships, and without it they saw little reason to use the marketplace over any other car site.
“I personally think Experian would be able to get you the best bang for your buck and you know, present you with your best finance options”
Influence and outcomes
Delivering this news took preparation. I gave my UX design manager a heads-up before sharing bad news, so he came into the meeting prepared. I used video clips so stakeholders could hear the frustration, hesitation, and concern in users' voices. There was very little pushback. The response was closer to “yeah, these are good points that we aren't considering,” and it raised a question the team hadn't worked through: what would make this marketplace different from any other?
- What I delivered: a report and video clips after each round.
- What was implemented: after round one, the team paused the MVP release until a vehicle details page was in place, but ultimately, nothing was implemented.
- What was measured: no metric. Within two weeks of the round two readout, leadership de-prioritized the Vehicle Marketplace and cancelled product and development work planned across numerous sprints. I believe the research helped drive that decision, though other factors were also at play. I don't have a dollar figure, but the cancellation likely saved months of development time and effort.
Reflection
What I learned. A team focused on getting a first version to market can miss the question underneath it. Showing them where users saw no difference from other sites was more useful than a list of usability issues.
What I'd do differently. I'd work with my UX designer to mock up a version that matched what users told us they wanted. Not to take ownership of the product, but to show what might be possible if Experian used its access to credit data. Telling a team what doesn't work is useful. Showing a direction worth exploring would have given them somewhere to go.
What remained unresolved. The credit-informed financing direction users described was never tested, because it was a much larger lift in product scope.
Appendix: methods and supporting detail
The full method notes and the rest of the findings, for a deeper read.
All findings
- Vehicle details were insufficient.Users expected a page for each car with history, condition, service records, and the information needed to judge it.
- “Request info” was slow and confusing.Users wanted details immediately. Waiting for a dealership to reach out frustrated them.
- Early SSN requests raised privacy concerns.Users questioned why it was needed while browsing and what Experian would send to dealerships.
- Personalization fell short.The experience didn't explain why particular cars were chosen for each user.
- Financing was the expected differentiator.Users expected Experian to use its credit knowledge to help with financing and affordability.
- Users were open to Experian's role but needed better shopping support.They wanted stronger filters, verified dealerships, and chat assistance.
Method notes
Moderated usability testing on two prototypes, after an earlier unmoderated concept test. Round one in February 2025 and round two in March 2025, five Experian users each, all planning to buy a vehicle within a year. Tools: Condens, TheyDo, Figma, Lyssna, Zoom.
More participant quotes
“Just create a web page for each car laying out the details.”
“Oh, that just sends an e-mail and now I have to wait for somebody to reach out to me. I don't like it.”