The TNGA (Toyota New Global Architecture) platform underpins cars such as the Corolla and Camry as well as some Lexus offerings.
GA-B platform is its smallest iteration of the TNGA meant to underpin the next generation of compact cars from Toyota.
It could debut with the launch of the Yaris, which is globally available in hatchback as well as sedan body shells.
The GA-B platform focuses on improving the driving experience and maximising cabin space.
It could spawn a variety of small models with differing body types, suspension and powertrains.