Suppose you have to find some way of selling 3 different versions of the same car, make them attractive to 3 different types of customer to increase overall sales.
There is a 4th version sold by Toyota as a Proace City (van) and Proace City Verso (MPV) – although only the van is sold the UK – the MPV is sold in Europe though so don’t know if it will come to the UK at one point.