Using Wright’s law some economists, including Bloomberg, believe that, although Petrol and Diesel (ICE) engines have almost reached their limits of improvement, Electric vehicles will continue to improve significantly. The key component being the battery, which is the most expensive, they have already decreased in price and increased in capacity over recent years. 2040 should be a possible date to achieve the majority of cars on the road being Electric for the UK and the rest of Europe.
As a result of technical improvements, the cost of Electric cars is expected to match that of ICE (Petrol and Diesel) in 2022 or 2023. Given the savings on running costs and servicing, Electric cars will be more than competitive with ICE.
From this you can see that, as more models become available, sales will increase. The Charging infrastructure can be expected to expand too. Given the actions of some European Governments, 2030 will be the date for new sales to be Electric only – Earlier in Norway – and, perhaps, 10 years later for the majority of ICE already in circulation.