I'm sorry if this comes under the heading of "dumb question", even sorrier if it comes under the heading of "very dumb question"

But seriously guys, did the G-7 version of the JU-88 powered by the Jumo 213E with water/methanol injection exist??
If the version of the JU-88 powered by the Jumo 213E was not designated the "G-7", what was its proper designation?
How many of these aircraft were produced and when was their service introduction with the Nachtjagdgeschwader?
Thanks much!
Glimspur