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Toyota is set to extend the TNGA (Toyota New Global Architecture) program to include small cars with the confirmation of a new GA-B platform.

 

Since debuting on the Prius in 2016 the TNGA has delivered improvements in ride, handling and design across a range of models.

 

Models such as the C-HR and new Corolla, which are underpinned by the GA-C platform for compact cars, and the Camry and RAV4, underpinned by the GA-K platform, have already benefitted from the program.

 

The new GA-B derivative is designed to deliver a highly rigid underbody using advanced techniques to strengthen joints in the structure, while at the same time focusing on weight-saving and cost control.

 

Another benefit of the platform is the flexibility to allow for either a torsion beam or multi-link rear suspension system to be used.

 

The employment of the GA-B platform sees the driver’s seat positioned low and back towards the centre of the car, helping lower the vehicle's centre of gravity. This will allow for a more engaging drive and allows the steering wheel to be set close to the driver at an optimised angle.

 

Given that the platform is for small cars and space is always at a premium the GA-B platform has been designed so that interior space can be maximised through smart packaging. A long-wheelbase architecture assists with maintaining interior space.

  

The GA-B platform's modular design allows for it to be used with different vehicle wheelbase lengths, heights and track widths, giving designers and engineers the freedom create appealing new models of different sizes and body types.