Depends I guess what you use your clubby for really....
I know its a company car, but it sounds more like a toy than a work tool.
Such toys are expensive as a company car, you'd definitely find a milkfloat much cheaper on your P11D... even cheaper still if you didn't choose the Tesla.
But even the Model 3 Performance isn't really the equivalent of a hot hatch. Sure its a great car, in a straight line its a missile, but a clubby isn't all about straight lines.
If you can afford it, I'd hang onto the clubby a bit longer. Sure we will all be electric soon, but not today.... well that was my thought when i swapped to a GTI for one last blast (well, maybe one last time.... we'll see)