https://www.cnet.com/roadshow/news/mazda-rotary-engines-will-juice-up-self-driving-toyota-evs/

Mazda will revive its rotary engine to help power Toyota's fleet of driverless electric delivery vehicles, Bloomberg reports, citing an interview with Masahiro Moro, Mazda's president of US operations.

It's funky, but the e-Palette has a whole lot of promise. I doubt it'll sound like a 787B, though.