No other car is more synonymous with the word “hybrid” than the Toyota Prius. The fourth-generation Prius was first unveiled in Las Vegas in September this year, and was heavily revamped from the inside and out with improved technology, driving dynamics and most importantly, better fuel efficiency.

Under the metal, the all-new Prius is the first model to be built on the modular Toyota New Global Architecture (TNGA) that is designed to lower the car’s centre of gravity. New manufacturing methods and materials used results in an increase of torsional rigidity by 60%. The new double wishbone rear suspension also replaces the previous torsion beam setup.

As far the Prius’ design goes, the future-centric looks are influenced by Toyota’s other green-loving car, the hydrogen-powered Mirai. Love it or hate it, the styling packs aggressive and very angular lines. Arrow-shaped LED headlights and full length taillights are part of the styling package as well. However, the Prius still retains its familiar profile, with a “floating roof” look this time.

Overall, the Toyota Prius and its sleek new body achieves a drag coefficient of just 0.24 (with the use of an automatic grille shutter). Customers who specify their cars in Thermo-Tec Lime Green body paint (Japanese market only) will also benefit from its heat-reflective properties.

Inside, the Prius’ cabin undergoes a significant amount of restructuring. The digital instrument cluster is located in the centre of the dash and now comprises two 4.2 inch full-colour TFT LCD screens (multi-info display on the left, basic vehicle info on the right). Drivers will have to accustom themselves with the vertically-mounted “cube” gear selector and a new heads-up display.

To power its green crusade, the Toyota Prius completely reengineered ts current 2ZR-FXE 1.8 litre Atkinson-cycle VVT-I four-cylinder petrol engine. Power output remains largely unchanged at 97 hp and 142 Nm but its thermal efficiency is now the world’s highest at 40%.

The 71 hp/163 Nm twin electric motors that assist the engine are also less powerful, which may hamper the powertrain’s performance but lighter key components like the batteries and transaxle offsets this deficiency. Fuel economy is rated at 40 km per litre on the JC08 cycle, up from 32.6 km per litre of its predecessor. Browse the full 100-image photo gallery after the jump.