Terashi's team is considering an option to prolong e-TNGA's usefulness by coupling it with new tecnnologies, three of the sources said.
Terashi could also propose to retire e-TNGA more quickly and opt for an EV-dedicated platform engineered from the ground up. That could take roughly five years for new models, two of the sources said. "There is little time to waste," said one.
Toyota is working with suppliers and considering factory innovations to bring down costs like Tesla's Giga Press, a massive casting machine that has streamlined work in Tesla plants.
One area under review is a more comprehensive approach to an EV's thermal management - combining, for example, passenger air conditioning and electric powertrain temperature control - that Tesla has already mobilised, the sources said.
This could allow Toyota to reduce the size and weight of an EV battery pack and cut costs by thousands of dollars per vehicle, making it a "top priority" for Toyota suppliers Denso and Aisin, one of the sources familiar with the matter said. Denso
(6902.T) and Aisin
(7259.T) had no immediate comment.