I wonder how long before Ford introduces an electric version of the Mustang - I mean of the 'real' Mustang as opposed to the Mach-E, which I'm sure is good, but not very 'Mustang'.

Not a production model granted, but........

2019-electric-ford-mustang-lithium-concept-pictures-specs-hp-info

I see that concept car has a 6-speed manual gearbox! It would probably accelerate faster from standstill in, say, 5th gear, than it would going up through the gears!

Yes, that does seem a tad unnecessary!.

The top of the range Tesla Model S can hit 60mph in less than 2.5 seconds with less power than that Mustang. But as there is no mention of four wheel drive, it is highly unlikely it could get anywhere near the big Tesla's acceleration, and that only has the one gear!.