The company is promising a 20 percent improvement in fuel efficiency and claiming that the new Crosstrek Hybrid can drive more than 621 miles on a single tank of fuel.

Subscribe to TheStreet's free daily newsletter Toyota brought a pair of four-cylinder engines, Mazda showed off a revamped and reworked version of its signature Wankel rotary engine, while Subaru showed off a hybrid version of its signature flat "boxer" engine installed in a prototype version of its popular Crosstrek crossover SUV.

Subaru's vehicles are beloved by their fans for plenty of reasons, but generally speaking, fuel economy isn't one of them. As a result, there's been plenty of interest in the automaker's vague plans to roll out hybrid models using a Toyota-based system in the near future.

Subaru, alongside Toyota and Mazda, have a partnership to ensure the proliferation of combustion engines - with help from electrified solutions

It’s not just the North American Subaru Crosstrek that gets an update for the 2025 model year. Over in its home market of Japan, the crossover also gets a welcome host of changes, chief among which is its powertrain.

Now, extended details have been published ahead of December when the Crosstrek will be the first model to utilize the next-generation hybrid system. At the heart of the new hybrid system is a naturally aspirated,