The Globe and Mail reported that the cars in the future will  need major design overhauls to be viable, including the exterior and engine components, to make their energy usage more efficient.

As quoted in the market report:

Car companies are already working on ways to cut weight. They’re exploring lighter materials like carbon fibre, aluminum and magnesium, as well as design improvements like optimized wiring and lightweight entertainment systems.

To view the whole Globe and Mail report, click here.