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From Agent-Led to Self-Serve: Scaling Motorway’s Seller Flow

Every car on Motorway needed a phone call with an agent before it could go to auction, so growth was capped by headcount. I redesigned the listing flow so more sellers could skip the call.

Role
Senior Product Designer, sole designer
Team
PM and a small engineering squad
Timeline
6 months
Status
Live, rolling out gradually

Overview

Motorway runs a daily online auction connecting private sellers with 5,000+ verified dealers. Every listing used to need a phone call with an agent before going live, an operational bottleneck that capped growth at the speed of hiring.

Impact

5%

of eligible cars now skip the agent call, and rising

~2,000

listings no longer tied to agent headcount

−40 min

average time to complete a listing

+30%

completion in the first prototype test

Context

Before a car could enter the daily auction, an agent had to approve it over the phone. As volume grew, that call became the bottleneck.

Sellers list their car, dealers bid in a daily auction, and Motorway takes a fee on each sale. Half the cars that started a listing stalled at the call, and some sellers gave up.

The bet: if the online flow could collect everything an agent would ask for, and keep people going without someone on the phone, good listings could go straight to auction.

The listing flow and every question an agent used to ask

What we found

Analytics showed where people dropped off. Getting close to sellers showed why.

Agent calls

Jargon and paperwork

Sitting in on calls showed first-time sellers overwhelmed by terms and documents.

Usability sessions

Enthusiasts held back

People wanted to list every upgrade to justify their price, and the form only had a short, dated list of options.

Flow review

Questions in the wrong order

People were asked what was in the boot before they'd gone near the car.

Key design decisions

01

Milestones

Problem
With no agent on the phone, nothing kept sellers moving through a long, stop-start flow.
Decision
Three checkpoints, Features, Photos and Ownership, each with a small moment of celebration when done. The number of questions stayed the same.
Outcome
Completion went up 30% in the first prototype test.

02

Features in plain English

Problem
A short, fixed list of features frustrated detail-minded owners and gave dealers poor data.
Decision
Chips plus a text box. Sellers type what they have, like "panoramic roof", and it's matched to the right chip or flagged for review.
Outcome
Better data for dealers, and sellers feel their car is properly described.

03

Questions in the right place

Problem
Questions about the spare tyre, locking wheel nuts and boot items came before sellers were at the car.
Decision
Moved them to the step where the seller is already at the car, with the object in front of them.
Outcome
40 minutes off the average listing.

Looking back

Framing the same questions as milestones did more than cutting questions would have.

The most useful research happened in sellers' driveways, not in the analytics. Next, I'd split first-time sellers from experienced ones at the start and give each a different flow.

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