+11% Revenue, From Linear to Non-Linear · Saleh Bazuhair
Cars24 · Automotive Marketplace · Lead Designer, Research to Ship

The product was live. It just wasn't selling.

Buyers could add tinting, warranty, and coating while purchasing a car. Almost none of them did. I spent the next stretch finding out why, and the answer wasn't a prettier screen. It was timing. Here's how rebuilding the journey took service revenue up 11%.

+11%
service revenue, post-launch
+1.2%
attach rate, A/B validated
Linear → Non-linear
journey rebuilt
Less RM
dependency on sales reps
Cars24 value-added services redesign overview
01 Where it started

An MVP that looked finished, but behaved like a placeholder.

When I joined Cars24, the value-added-services feature was already shipped. On paper it made sense: someone buying a car could add tinting, an extended warranty, or ceramic coating in the same flow. Convenient. Logical. Good for the business.

Except the numbers told a different story. People reached the services step and left. Drop-off was high, engagement was low, and the few who did add a service usually did it because a human talked them into it later, not because the product did its job.

I owned this end to end, research, design, and the handoff to engineering. My brief was simple to say and hard to do: make it user-first, kill the friction, and get the product to sell the way our best people did.

02 Listening before designing

I didn't start in Figma. I started with what was making people leave.

Before touching a single screen, I went looking for the friction. I pulled it from three places that don't lie: NPS verbatims, one-on-one interviews, and field visits where I watched real buyers and sat with the sales floor.

The same complaints kept surfacing, in the buyers' own words.

"I don't really know what these bundles actually offer."
"Just help me pick what fits, I don't have time to read everything."
"I'm used to someone walking me through this."
"Tell me what coating actually does, and why it's worth it."

I clustered the raw feedback into patterns, so the redesign answered real frustration instead of my assumptions about it.

⏱️

They met it too late

Most buyers first heard about services on a call with a Relationship Manager, after they'd already paid a token and committed. The product stayed silent until then.

🤷

They couldn't read the menu

Required or optional? Worth it or not? The flow didn't say, so people froze rather than risk the wrong call.

📞

They leaned on a human

Understanding a service meant waiting for a rep to explain it. Slow, and gone the moment the car was delivered.

03 The turning point

The best reps weren't better talkers. They were better timers.

Here's the thing that changed the whole project: some Relationship Managers closed far more service deals than others. Same script, same prices, wildly different results. So instead of guessing, I studied exactly what the top performers did differently, and it turned out to be a design brief hiding in plain sight.

They sold with pictures, answered the real question, and read the buyer. None of that lived in the product yet, so I built it in.
01

They showed, never just told

The top closers always sent photos and short clips over WhatsApp. A buyer who sees 30% vs 50% tint decides in seconds. A buyer who reads a spec sheet stalls. That alone reframed the redesign around visuals first.

02

They answered the question actually being asked

"Will scratches still show after coating?" "Are engine parts covered, or just labour?" I collected the real questions from rep calls and made the flow answer them in place, instead of leaving buyers to wonder.

03

They tailored the pitch

Good reps read the person, price-conscious or premium, compact or SUV, and led with what mattered to them. That's the whole case for a journey that adapts instead of one that marches everyone down the same hallway.

04

They reassured at the exact moment of doubt

When someone hesitated, the line was always some version of "my last three customers with a car like yours all added coating." Social proof, delivered right when it counts. I designed for that moment, not around it.

04 Backing it with data

A hunch is a starting point. I wanted the numbers to agree.

I cross-referenced what the best reps did against the actual behaviour and conversion data, so every design decision had something underneath it besides instinct.

Data insights from analysing user behaviour and rep performance
05 The decision everything hinged on

Stop making everyone walk the same line.

The old flow was linear: one fixed sequence, every buyer pushed through every option in order. It had a fatal flaw, every new service made the journey longer for everyone, whether they cared or not. It couldn't scale, and it buried the things people actually wanted.

So I rebuilt it as a non-linear journey. The product surfaces the right service at the right moment, shows each buyer only what's relevant to them, and grows the catalogue without growing the friction. This one architectural call is what made everything after it possible.

Before · Linear flow
Linear value-added-service flow diagram, every user forced through the same sequence
After · Non-linear journey
Non-linear value-added-service journey diagram that adapts to each buyer
06 Thinking it through on the canvas

Before the final screens, a lot of exploration. This is where the thinking happened.

I don't arrive at the answer in one jump. I set a direction, sketch the options, pressure-test them, and let the weak ideas die early. Here's some of that middle, the part most case studies hide.

Setting the visual direction · moodboard
Early ideas · getting the concept out fast
Two directions, taken to detail for testing
The bundle list, and the anchor page it hangs off
Worth being honest about

I had the old linear screens in front of me the whole time. It would've been easy to polish them and call it a redesign. The harder, right move was admitting the structure itself was the problem, and rebuilding it, not repainting it.

For reference · the linear version I was replacing
The old linear version UI being replaced
07 Where it landed

Show the right service the moment the buyer is already thinking about the car.

Every move in the final design traces back to one idea: stop saving the pitch for a phone call. Pull it forward, make it visual, and answer the question before it's asked.

Redesigned value-added services screen
Discovery, moved upstream

Services show up while they're still picking the car

Short, benefit-led callouts for tinting, warranty, and coating live right on the car detail page, the moment a buyer is already weighing it up, not bolted onto the end after they've committed.

Built from a real rep tactic

See it before you buy it

Because the best closers always sent visuals, the redesign leads with them. Previews show a car with the tint or coating applied and answer the exact questions buyers used to ask reps, so they can decide on their own, with confidence.

Visual service preview screen
Bundle selection screen with clearer layout
Make the choice obvious

Bundles that read in a glance

A cleaner bundle layout in plain language made it obvious what each package included, and nudged more buyers to act without needing anyone to hold their hand.

More of the shipped flow
08 See it move

The shipped journey, end to end.

Static screens only get you so far. Here's the real thing, the way a buyer actually moves through it, from browsing a car to discovering and adding a service.

09 What it moved

It tested better, and it sold better. Both mattered.

This didn't go live on faith. I ran it as a real A/B test against the existing experience, so the wins are measured, not claimed.

+11%

Service revenue

The headline number. Service revenue rose after the redesigned experience shipped, the proof that clarity and timing move money.

+1.2%

Attach rate

The new bundle layout lifted attach rate in A/B testing. Modest on its own, but a clean, low-risk win that confirmed the direction.

Fewer calls

Less RM dependency

More buyers finished on their own, exactly the goal: a product that explains itself instead of waiting for a human to.

The numbers behind the launch
The honest read on the A/B test

The bundle layout won by +1.2%. Individual services stayed roughly flat. I'm not going to dress that up, the point of the test wasn't a giant jump, it was proving the redesign didn't hurt performance (always the real risk) while nudging more people to act and lean on reps less. It did both.

What I took from it

Three things this one taught me.

01

Timing is a design material

The biggest lever wasn't a better screen, it was moving discovery earlier. When someone meets a service decides whether they ever consider it at all.

02

Your best people are research

The top reps had already solved this on the phone. My job was to notice what they did, visuals, real answers, the right pitch, and bake it into the product.

03

Sometimes you rebuild, not repaint

A linear flow gets heavier with every option. The win came from changing the structure, not decorating the old one. Knowing the difference is half the job.

Got a flow that's losing people at the wrong moment?

That's the work I like most: finding where a journey leaks, and rebuilding it on evidence instead of guesswork.

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