The Chevy Volt and Incremental Engagement
Have a Chevy Volt and want to compare how it performs versus other Chevy Volt owners? Check out https://www.voltstats.net/
You can upload your driving performance of your Chevy Volt. Stats such as EV miles (Electron Volt Mile), total miles and MPGe (electric miles). All great stuff.
The important thing is that this site is a great example of INcremental Engagement. Based on user interaction he gets achievements and can compare his experience to the rest. He can also create a specific group and compare within a smaller circle of Chevy Volt drivers.
All the while the user is engaging more and more with the website and indirectly with the Chevy Volt.
I wonder when Chevy comes on as an official sponsor? Or maybe Nissan?