Revetron Engine from Tata Motors is a First engine in 1.2 lit which is electronic turbo charged MPFI engine with 85 PS @ 5000 rpm and peak torque of 140 Nm @ 1750-3500 rpm. It has Advanced catalytic converter reduces toxic emmissions, Low friction crank case to silence the world out side.This engine has multi drive mode for eg. if you want to overtake than you can switch to sport mode and if you are driving in city then you switch to city mode and if you want to save fuel then select eco mode. This you can do right from your dashboard.
Company will put this engine in their upcomming cars called Tata Zest and Tatat Bolt in next month. Till then if you want to experience this engine then you can download game on ios and android called Tata Motors R challange and its link is here
Now they are introducing labs in every malls over 15 cities and you can experience this engine in theses labs.