Swipe
In 2012, I worked with another designer to design the mobile version of AutoZone.com. We used Photoshop and Illustrator to design each page of the website in every possible state. We also worked closely with the business team to revise requirements and user flows to optimize the user experience.
See the live version on your mobile device (redirects to full site on desktop) — m.autozone.com.
Note: AutoZone decided not utilize a responsive design at the time due to technical limitations with their parts catalog.