With its new 1.8 liter engine and next-generation XTRONIC CVT (Continuously Variable Transmission), the all-new global sedan delivers impressive fuel efficiency. A long piston stroke and Twin Continuously variable valve timing control (C-VTC) optimize combustion, while hydrogen-free Diamond Like Carbon (DLC) coating on valve lifters halves friction of previous coatings and beehive valve springs reduce friction and inertial loss. The next-generation XTRONIC CVT is lighter and more compact than previous designs, yet achieves greater efficiency and a wider gear ratio range, thanks to an auxiliary transmission with sub planetary gears and smaller pulleys. This environmentally-friendly performance reflects Nissan’s global PURE DRIVE commitment to reducing CO2 emissions through developing fuel efficient internal combustion engine (ICE) technologies and introducing them into the market.
This is for this car but nissan did release a spy shot of the sentra and it looks identical to this rear tail light but all red. Nothing heard yet about any other motor.
Edit: missed the other info in the thread.