Toyota will debut its new hydrogen fuel-cell concept, the “Fine-Comfort Ride” futuristic minivan, at the Tokyo Motor Show later this month.

Dubbed a “new form of the premium saloon,” the Fine-Comfort Ride sports sharp angular contours and an absurdly long wheelbase. Its high wheel arches, missing front/rear pillars and bucket seating rest in a diamond-shaped cabin with a wider center that narrows towards the back. Regarding specifications, the concept promises 621-miles (1,000-km) of range using Japan’s ultra-liberal JC08 cycle, promising up to 50-percent more driving range than the current Mirai fuel-cell vehicle launched in late 2014. The Fine-Comfort ride also promises a three-minute refuel.

Its interior is emblematic of future mobility, featuring a six-seat configuration with cavernous seating space and flexible bucket seats. This helps maximize space for one passenger or a group with inward positioning for face-to-face conversations or group work. A “virtual agent” is also integrated into touch displays installed on driver and passenger side windows for a fully immersive experience.

No other specifications have been revealed regarding its powertrain or self-driving features.