Root-Causing Lower Car-Shopper Conversion in CarGurus Canada Versus the US
Company: Cargurus
Role: Product Manager
Category: Analytics & Experimentation
Difficulty: medium
Interview Round: Other
You are a PM at CarGurus. Eight months after the company launched in Canada, the Canadian site converts at a lower rate than the US one. How do you find out why, and what do you do about it?
```hint Check the comparison first
Before hunting for a product problem, make sure both numbers measure the same thing and that an eight-month-old market is being compared fairly with a mature one. Then find the step of the funnel where the gap opens.
```
### Clarifying Questions
- Which conversion is lower: shoppers sending a lead to a dealer (a message, call or click-through), dealers signing up for paid plans, or completed car sales?
- Has the gap been stable, shrinking or widening over the eight months since launch?
- Is conversion tracked and attributed the same way in both countries, for example for phone leads?
- Is the gap present in every province, language and device type, or concentrated in some of them?
### What a Strong Answer Covers
- A precise definition of conversion and a check that the Canada and US numbers are comparable before any diagnosis
- A fair benchmark for an eight-month-old market, and a split of the gap into mix effects (traffic, device, region) versus lower rates within like-for-like segments
- A funnel comparison that pinpoints where Canadian shoppers drop off
- Hypotheses on both sides of the marketplace: inventory depth and dealer engagement, pricing analysis quality, localization, trust and local competition
- A prioritized plan with the metric to move, how changes will be tested, and guardrails
### Follow-up Questions
- The gap disappears when you compare Canadian cities with US cities of similar listing density. What do you do next?
- Quebec converts far below the rest of Canada. What would you check first, and what would you fix?
- How would you set a realistic conversion target for Canada for the next two quarters?
Overview: A metric diagnosis case about CarGurus, whose Canadian site converts below the US eight months after launch. It tests validating the comparison, separating mix effects from true rate gaps, finding the funnel step where shoppers drop off, and forming hypotheses on inventory, pricing analysis, localization and dealer engagement.