CTRL+2 I think is the default shortcut, however you can set it to whatever you like in the control configuration settings (MGU Deployment Mode I think is the term).
Thanks! Good point, not really sure why I missed it, I have relatively good reference pics of it... I'll add it to my list to include for a (distant) future update - I don't really like the idea of updating too often for little things, it fragments the userbase.
No plans for on a ICE car, though you never know. A RWD ICE car sounds like a lot of fun...