Engine and drivetrain The GR GT is powered by Toyota's first 90-degree bank angle
twin-turbocharged V8 engine equipped with transaxle-integrated single-motor
hybrid system with a maximum system output of and maximum torque output of . The engine was developed with a design concept of being "thoroughly compact and light" in order to achieve the car's "low overall height and low centre of gravity" package. In addition to reducing the engine's overall height with a bore and stroke of , it also uses a "
hot vee" configuration with two turbochargers within the bank, a port and direct-injection system, a
dry sump lubrication system and a thinner oil pan. The power generated by the engine is transmitted to the rear transaxle via a
torque tube made of
carbon fibre reinforced plastic (CFRP). The transaxle integrates a
motor–generator, a newly developed rear-mounted eight-speed
automatic transmission using a "wet start clutch" (WSC) that eliminates the torque converter and a mechanical
limited-slip differential, and outputs power directly to the tyres. The adoption of a rear transaxle and optimal placement of heavy items such as the drive battery and fuel tank resulted in a front-to-rear weight distribution of 45:55.
Interior The interior design of the GR GT claimed importance on the driving position and visibility, aiming to "create an optimal design that is suitable for both professional and individual drivers, as well as for both circuit and daily use". The driving position was designed for ease of operation in mind, placing driving-related switches near the steering wheel and are shaped to be intuitively easy to press. The width, height and position of the instrumentation display, such as the shift-up indicator and a gear position, were also determined to be easily seen while driving on a circuit or the street. == Specifications ==