UX Case Study: Designing the Perfect Car Wash – A Sudsy Saga of Friction, Flow, and Foam

Spotify

Introduction: The Great American Car Wash

We’ve all been there. Your car is caked in the memories of last month’s road trip, last week’s rainstorm, and a bird that clearly had opinions. You decide to go to a car wash. Easy, right?

Wrong.

You are now entering the UX Bermuda Triangle.

Because for something that is literally supposed to clean things, the average car wash experience is a tangled mess of unclear interfaces, anxious decisions, and random wet surprises.

But what if we redesigned the whole experience—from the first menu tap to the final fluffy towel wipe—with UX principles in mind?

Let’s soapbox this.

User Personas: Know Thy Dirty Drivers

First, we conducted user research. Over 1,000 car owners. 87% of them admitted they didn’t know what “Triple Foam” actually does. 100% agreed the dryer never finishes its job. We distilled our research into these core personas:

  • The Nervous Newbie: Hasn’t used a drive-thru wash since 2008. Terrified of alignment rails.
  • The Subscription Addict: Pays $29/month for “Unlimited Supreme Sparkle” and has no idea what it includes.
  • The DIY Detailer: Brings their own microfiber cloths. Judges everyone.
  • The Speed Demon: Just wants to wash-n-go. Leaves with the sunroof accidentally open 12% of the time.
  • The Parent Van Pilot: Needs to erase three years of snack residue before Grandma visits.

Each one has different goals, pain points, and towel preferences.

Touchpoint 1: The Pre-Wash Menu (Where UX Goes to Die)

You pull up to the machine. There it is: The Menu.

Eight wash options. Three combo tiers. A lava foam add-on. A mysterious button that says “YES to Gloss.”

It’s a classic case of choice overload. You just wanted the dirt to go away, but now you’re in an impromptu game show called “Which Wash is Worth It?”

The typography? Tiny.

The screen? Glare-covered.

The button layout? Designed by someone who hates fingers.

UX Fixes:

  • Fewer choices, grouped by outcome, not obscure features.
  • (“Quick Clean,” “Deluxe Shine,” “Inside & Out Redemption Arc”)
  • Use plain language. No more “Polymer Protective Shield Vortex Spray.” Just say “Extra Wax.”
  • Add a “Don’t Make Me Decide” button that chooses a popular default. Because it’s 7 a.m. and the coffee hasn’t kicked in.

Touchpoint 2: The Alignment of Doom

Ah yes, the terrifying moment when you’re told:

“Just drive your front wheels onto the track until you feel a jolt and the guy in the neon vest gives you a thumbs-up.”

There is no visible feedback. No alignment guides. No indicators. Just faith, instinct, and a vague sense of betrayal when your car suddenly jerks forward like it’s being abducted by aliens.

UX Fixes:

  • Introduce progressive visual indicators—lights, arrows, friendly voice guidance like: “A little left… a little more… nailed it!”
  • Add haptic vibration when perfectly aligned.
  • Or just remove alignment entirely and design a car wash where you don’t have to fear for your suspension.

Touchpoint 3: The Washing Tunnel – Sensory Overload

You’re in. The garage door closes. Suddenly:

  • The lights go dark.
  • Blue foam smacks your windshield like a Nickelodeon slime attack.
  • Something called “Rainbow Coat” descends.
  • You’re unsure if you’re in a car wash or a themed ride at Universal Studios.

There is no progress bar. No idea how many stages there are. All you can do is sit there and pray the sunroof doesn’t spontaneously unlatch.

UX Fixes:

  • Add a simple visual progress bar inside the tunnel:
  • [1/5] Pre-Rinse → [2/5] Soap → [3/5] Foam → [4/5] Rinse → [5/5] Dryer
  • Play calming audio narration. Something like:
  • “You’re doing great. This is the lavender foam. Yes, it smells amazing.”
  • Include window tint-safe lights. Nobody wants a rave while rinsing.

Touchpoint 4: The Dryer (AKA the Great Lie)

The dryer phase starts. Your car slowly glides through. A massive fan roars above. A green light flashes. Then—before your windshield even has a chance to shed a single droplet—you’re ejected back into the world.

Water spots remain. Confidence is low.

UX Fixes:

  • Variable-speed dryers that actually dry.
  • Countdown timer so users know whether to cry now or wait for the next rain.
  • Offer a microfiber wipe station at the exit with signage like:
  • “Still spotted? We got you.”

Touchpoint 5: Post-Wash Delight (Or Lack Thereof)

No follow-up. No satisfaction survey. No “You did it!” celebration. You just get wet tires and existential confusion.

UX Fixes:

  • Add a confirmation screen or SMS: “Your Sparkle Level: 93%. Great job, legend.”
  • Offer next-wash discount only if you rate your experience with a single emoji.
  • Optional selfie booth: “Show off your clean ride. Hashtag it #UXwash.”

Accessibility + Delight = UX Gold

We didn’t forget our inclusive design goals either:

  • Easy-to-reach screens and buttons for drivers of all heights.
  • Larger text, better contrast.
  • Wash experience audio narrated by Morgan Freeman (stretch goal).

Conclusion: Clean Cars, Clean UX

The car wash is more than just foam and fans—it’s a full sensory UX journey packed with micro-decisions, underwhelming feedback, and the occasional bird revenge.

But with the right design, it can become a place of joy. A moment of calm. A reset button wrapped in soap bubbles and gentle whooshes.

Because the perfect car wash should not feel like navigating a vending machine in a thunderstorm.

It should feel like this:

Choose > Align > Glide > Shine > Applause

We call it AutoMatic UX™.

Now with 87% fewer mystery buttons.

Stay tuned next time when we redesign… the drive-thru. (Spoiler: it involves fewer intercoms and more empathy.)