Autoselectr car comparison platform — project hero banner

Autoselectr helps you find just the right car for you

Client: Autoselectr Role: UX / UI Designer & Researcher Timeline: 3 months Tools: Figma, EightShapes Specs

A website that recommends and compares cars

Autoselectr is a car comparison platform designed for Portuguese users to find and evaluate vehicles based on their preferences. The MVP needed to serve two distinct audiences: those who already know the car they want, and those who are overwhelmed by too many options. I led the UX and UI design from scratch, including user research, UX flows, wireframes, visual design, and developer handoff.

Car buyers are underserved when it comes to mobile-friendly car comparison platforms. Existing tools are clunky on mobile, often limit comparisons to two cars, and don't adapt to user knowledge levels. Autoselectr aimed to solve that by building a dual-experience comparison tool that works equally well for car enthusiasts and first-time buyers.

Market & Competitor Research

We analyzed top car comparison sites and found consistent gaps:

  • Most did not support 3+ car comparisons
  • Mobile layouts were hard to navigate
  • Forms were long and generic
Competitor analysis of existing car comparison sites showing identified market gaps

The competitors helped me identify gaps in the market as well as get inspiration for good practices

To serve both groups, we designed two parallel user journeys:

  • Option 1: Guided Wizard
    For unsure users, we built a wizard-style questionnaire. Each screen focused on one decision, with visual aids and step indicators.
  • Option 2: Direct Comparison
    For confident users, a linear form displayed all filters at once. This reduced friction and enabled faster submissions.

Collaboration

I worked closely with our Tech Lead to define which user attributes the algorithm needed, helping shape the structure of the questions and how data would be returned and filtered.

User flow diagram showing parallel journeys for guided wizard and direct comparison

Creating a user flow that adapts to the needs of simple vs. advanced users

Wireframing with Crazy 8s

I used the "Crazy 8s" method to quickly explore layout solutions for each major screen. Though not shared externally, this helped challenge obvious solutions and sparked creative layout directions.

Form Design

  • Wizard form was used for beginners, with one question per screen, clear navigation, and progress indicators.
  • Linear form was optimized for experts to skim and complete fast.
Wireframes of guided wizard form for beginners and linear expert form side by side

Due to the two distinct types of users, I needed to create two forms to support both user types

Car Comparison Page

This was the most technically and visually complex page in the product. Users could compare up to 3 cars, each with extensive specs.

Design Challenges:

  • Fit large amounts of structured data into a mobile layout
  • Keep group headers visible while scrolling
  • Enable quick comparison across 3 vertical columns

UI Solutions:

  • Horizontal scrolling for the 3rd car
  • Sticky spec group titles for context
  • Grouped and collapsible content blocks
Car comparison page wireframe — two-car layout
Car comparison page wireframe — three-car layout with horizontal scroll

My next challenge was creating a scalable UI that can be used to compare 3 cars

Inspired by old classified newspapers and the act of "circling" car listings, I used a bold, highlight-style yellow to call out key user selections. To contrast, blue was used as the primary brand color to communicate trust and calm.

Accessibility

The entire palette was tested for accessibility contrast, and typography was selected to be both strong and readable.

Autoselectr brand palette applied to UI elements — yellow highlights and blue primary colour

Applying the palette to the elements across the UI

Wireframes with Autoselectr branding colours applied across screens

Applying the branding palette to the wireframes

Form design for non-partnered car companies in the Autoselectr MVP

As the project was in its initial states we had a limited amount of partners. This is the form for the non-partnered car companies

I created a comprehensive style guide with:

  • Color and typography rules
  • Reusable UI components
  • States for buttons, cards, and forms

Using EightShapes Specs (pre-Figma Dev Mode), I generated annotated spacing and margin specs to ensure a smooth handoff.

Autoselectr style guide with annotated spacing, components, and typography for developer handoff

The generated styleguide so that I could perform a streamlined hand-off to the developers

Next Steps

  • Run A/B tests comparing the two form flows
  • Conduct usability testing for pain points in car comparison
  • Add analytics tracking to see drop-offs and conversions

Final Thoughts

This was my first end-to-end client project including branding, UX flows, visual design, and developer handoff. The client accepted the MVP without revision, and we're currently moving into testing with users.

MacBook Pro showing the final Vota.nl redesign
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