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James Southorn

Design Portfolio

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heading decoration

Car Throttle app

heading decoration

April 2, 2016

CarThrottle app
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user icon

Lead Product Designer

App Design

The Challenge


Car Throttle, a leading online automotive community with millions of users, faced growing demand for a native mobile app. Users desired a more convenient way to access content, receive notifications, and engage with the platform.


The Solution


To meet this demand, I designed and launched native apps for both iOS and Android platforms. The apps provided:


  • Quick access to the Car Throttle feed
  • Native notifications for likes, comments, and follows
  • Native content-sharing capabilities
  • An optimized content consumption experience


The Outcome


The Car Throttle app was a success, achieving:


200,000+

downloads


25,000+

app reviews


4.9 ⭐️

Play Store rating


100's

of user posts per day



App download banner


iOS app store screenshots of the main features

View prototype

This app is very well done. Loving the UI, ease of use, and how much content is properly integrated from the desktop site.

quote marks

Kyle 1

CarThrottle user

Design process


Sketches


sketches



Wireframes


wireframes



Screen designs


android designs


ios designs



App store reviews


app store reviews

Recent projects

PistonHeads Auctions

Launching PistonHeads Auctions, a new product on the popular automotive website.

Website Design

July 17, 2024

MindLabs app

Launching an iOS app to market for a new mental health startup.

App Design

November 16, 2022

Fresh Fitness Food app

Project to design an innovative app for the UK’s #1 bespoke nutrition service.

App Design

May 18, 2020

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Let’s work together

© 2026 JSouthorn Design Ltd. Company no. 11583776

logo
logo
logo
logo
logo
logo

James Southorn

Design Portfolio

decorative line
heading decoration

Car Throttle app

heading decoration

April 2, 2016

CarThrottle app
dashed line
user icon

Lead Product Designer

App Design

The Challenge


Car Throttle, a leading online automotive community with millions of users, faced growing demand for a native mobile app. Users desired a more convenient way to access content, receive notifications, and engage with the platform.


The Solution


To meet this demand, I designed and launched native apps for both iOS and Android platforms. The apps provided:


  • Quick access to the Car Throttle feed
  • Native notifications for likes, comments, and follows
  • Native content-sharing capabilities
  • An optimized content consumption experience


The Outcome


The Car Throttle app was a success, achieving:


200,000+

downloads


25,000+

app reviews


4.9 ⭐️

Play Store rating


100's

of user posts per day



App download banner


iOS app store screenshots of the main features

View prototype

This app is very well done. Loving the UI, ease of use, and how much content is properly integrated from the desktop site.

quote marks

Kyle 1

CarThrottle user

Design process


Sketches


sketches



Wireframes


wireframes



Screen designs


android designs


ios designs



App store reviews


app store reviews

Recent projects

PistonHeads Auctions

Launching PistonHeads Auctions, a new product on the popular automotive website.

Website Design

July 17, 2024

MindLabs app

Launching an iOS app to market for a new mental health startup.

App Design

November 16, 2022

decorative line

Let’s work together

© 2026 JSouthorn Design Ltd. Company no. 11583776

logo
logo
logo
logo
logo
logo

James Southorn

Design Portfolio

decorative line
heading decoration

Car Throttle app

heading decoration

April 2, 2016

CarThrottle app
dashed line
user icon

Lead Product Designer

App Design

The Challenge


Car Throttle, a leading online automotive community with millions of users, faced growing demand for a native mobile app. Users desired a more convenient way to access content, receive notifications, and engage with the platform.


The Solution


To meet this demand, I designed and launched native apps for both iOS and Android platforms. The apps provided:


  • Quick access to the Car Throttle feed
  • Native notifications for likes, comments, and follows
  • Native content-sharing capabilities
  • An optimized content consumption experience


The Outcome


The Car Throttle app was a success, achieving:


200,000+

downloads


25,000+

app reviews


4.9 ⭐️

Play Store rating


100's

of user posts per day



App download banner


iOS app store screenshots of the main features

View prototype

This app is very well done. Loving the UI, ease of use, and how much content is properly integrated from the desktop site.

quote marks

Kyle 1

CarThrottle user

Design process


Sketches


sketches



Wireframes


wireframes



Screen designs


android designs


ios designs



App store reviews


app store reviews

Recent projects

PistonHeads Auctions

Launching PistonHeads Auctions, a new product on the popular automotive website.

Website Design

July 17, 2024

MindLabs app

Launching an iOS app to market for a new mental health startup.

App Design

November 16, 2022

Fresh Fitness Food app

Project to design an innovative app for the UK’s #1 bespoke nutrition service.

App Design

May 18, 2020