It may sound expensive in building hybrid. But thats how it supposed to be. If you scrap the current disel and petrol engines all of a sudden when we dont have infrastructure and not even a design in place for EV vehicle implementation in major companies, we can expect them on road by 2020.
Even to reduce emission. It goes by levels. You cant suddenly reduce emissions all of a sudden.Its a long process. Even if you make a small change in design and it cost us lot in redesigning manufacturing facility. then just think about switching to EV manufacturing. Similar to the way we suffer because of petrol and diesel, we will also suffer one day because of EV vehicles. Rather than realizing late, its better to equally use the resources by having hybrid.Just my view.