With a compact size and lightweight design that minimizes any negative impact on fuel efficiency, the system is positioned snugly in the rear of the vehicle to ensure plenty of legroom and luggage space. The luggage area capacity of the model featuring E-Four (with spare tire) is 457 liters, the same as the 2WD model (with spare tire).
Toyota is not offering E-Four in the US.
TNGA and Handling. The 2016 Prius is the first global vehicle to implement Toyota’s New Global Architecture (TNGA). (Earlier post.) TNGA aims to greatly improve core vehicle performance and enhance product appeal through an integrated development program for powertrain components and vehicle platforms.
The Toyota TNGA concept delivers an increase of more than 60% in body torsional rigidity in the new Prius, compared to the previous model, by using Laser Screw Welding (with a greater number of weld points), structural adhesives and uniquely shaped frame structures. In addition, the amount of high-tensile strength steel has increased from 3% to 19%. Combine these enhancements with its new double wishbone rear suspension and a lower center of gravity, and the result is a hybrid with a sporty ride.