Tata Motors is all set to launch its new Nexon SUV this year before Diwali. Ahead of its roll out, the company today introduced two new engines and a gearbox for the upcoming car. The new power-trains include a 1.2-litre petrol from the Revotron series and a 1.5-litre diesel engine from the Revotorq family. Tata says that these motors are performance-oriented and offer higher fuel efficiency and performance. The Nexon made its debut at the Auto Expo 2016, the company said in a release.