Jaguar: Back to the Future.

[JockoT]

Check this out, especially the last few minutes.
https://www.youtube.com/watch?v=610Amyhpzzk

[Draigflag]

Another great informative video from fully charged. If I were restoring an old car, I would definitely consider an EV conversion, especially if the entire engine needed rebuilding anyway. Battery and motor costs are still pretty high though sadly.

[JockoT]

The idea of having a unit that just fits in place of the engine and gearbox is a brilliant idea. If Jaguar ever gets round to marketing the unit I bet the price would make your eyes water! It is an idea that a third party might be interested in building and selling though.

[Draigflag]

I think the price of a normal E type would make your eyes water anyway (fully restored) maybe having an electric power train won't be so bad.

[JockoT]

The great thing about that power train, if they ever produce it and sell it, is it is a retro fit for every Jaguar that used the XK6 engine. Everything from the XK120, through the E Type, Mark 2 (Inspector Morse), Mark 10, and even the Daimler Sovereign. I can imagine 3rd party restorers going mad for it. And it is a non destructive modification.
Other companies could do similar things for any marque of car that had a long running engine type (Mercedes, Ford, BMC A and B series). The list is endless.