You can install our site as a web app on your iOS device by utilizing the Add to Home Screen feature in Safari. Please see this thread for more details on this.
Note: This feature may not be available in some browsers.
My wife and I both have poor circulation and heated steering wheels were a must-have for us. That is, until my son pointed out how easy it is to have the whole car warmed up inside before you get in. We bought an M3 and love it.