Just 15 examples of the Bathurst Edition will be built for the Australian market.
The battery pack in the EX30 crossover could overheat.
A production version will go on sale in Australia later this year.
The luxury brand is reportedly working on its own Land Rover rival.
Polestar promises a high-performance BST variant for all its future models, including the Polestar 2.
Any form of electrification would add weight, but Mazda wants to keep the next MX-5 as light as possible.