I doubt this is economically feasible in high-wage countries (like Germany). Yes, EVs are expensive, but having a car completely transformed (plus certifcations and the cost of the transformation kit itself) will be even more expensive.
There are a few companies doing it in EU but most of them are focusing on premium classic cars.
For some of those, especially sports car, it can look as a sacrilege but I would have no issue converting say, a Bentley, Rolls Royce or Jaguar/Daimler coach to electric. These used to be built to transport rich people in total comfort, you don't need a smelly, noisy engine on them anyway.
Exactly what I mean - car freaks (if they are not "combustion engine freaks") with enough disposable income surely love this. But it's not a feasible way to transform the individual transport sector to a greener footprint.