The highly anticipated Tata Sierra SUV has recently showcased its exceptional capabilities. In rigorous tests conducted at the NATRAX (National Automotive Test Tracks) facility. During these evaluations, the Sierra recorded impressive figures in both mileage and top speed, highlighting Tata Motors' expertise in vehicle engineering, while this achievement is a significant part of the company's SUV evaluation program, carried out under the strict supervision of trained and expert drivers.
Record-Breaking Mileage Performance
The Tata Sierra achieved a remarkable mileage of 29. 9 kilometers per liter (kmpl), derived from a certified 12-hour testing session held on November 30, 2025. During this extensive test, the SUV, equipped with a 1, while 5-liter Hyperion engine, was driven continuously from 7:00 AM to 7:00 PM. Only short breaks were taken for driver changes throughout this prolonged period, allowing for a comprehensive assessment of the vehicle's sustained performance capabilities. This run, organized by the Pixel Motion team, has been registered in the India Book of Records for achieving the highest fuel efficiency in 12 hours, serving as a solid testament to the Sierra's efficiency.
Performance on the NATRAX Track
The controlled environment of the NATRAX closed track, which provides stable and. Consistent conditions, enabled the Hyperion engine-equipped Sierra to demonstrate its full potential. The engine's advanced combustion design, efficient torque delivery, and low-friction parts ensured that the vehicle maintained consistent high performance and fuel efficiency. While this controlled setting differs from real-world driving conditions, it's ideal for measuring the vehicle's maximum capabilities under optimal circumstances.
Impressive Top Speed Achievement
Alongside its mileage record, the Tata Sierra also proved its mettle in the top speed test, while the SUV achieved a stunning speed of 222 Kmph on the NATRAX high-speed circuit. This figure represents the maximum performance capability of the Tata Sierra's Hyperion engine, as attained during supervised testing. This speed is a testament to the vehicle's engineering and power, positioning it among high-performance SUVs.
Safety and Customer Advisory
Tata Motors has issued an important cautionary note accompanying these impressive figures. The company has clarified that the mileage and maximum speed figures for the Tata Sierra were achieved by professional drivers under controlled conditions, while customers are advised not to attempt to replicate these speeds or driving patterns on public roads and to adhere to traffic regulations at all times. This advisory prioritizes safety and encourages customers to practice responsible driving habits.
Electronically Limited Speed for Customers
In accordance with internal safety protocols, Tata Motors has also confirmed that the maximum speed of Tata Sierra models specifically designed for customers will be electronically limited to 190 kmph. This limitation is imposed to ensure that safety standards are maintained while driving on public roads, while still providing a powerful and responsive driving experience, while this measure reflects the company's commitment to both performance and passenger safety.
Diverse Powertrain Options
The Tata Sierra will be available with multiple powertrain options, catering to various customer needs and preferences. These include a new 1, while 5-liter Hyperion T-GDi petrol engine, generating 160 PS of power and 255 Nm of torque, paired with a 6-speed torque converter automatic transmission. On top of that, a 1. 5-liter Revotron NA petrol engine is available, offering 106 PS and 145 NM, which can be coupled with both 6-speed MT and 7-speed DCA transmissions. For diesel enthusiasts, there is a 1. 5-liter Cryojet diesel engine, delivering 118PS of power and 260/280 Nm of torque, available with 6-speed MT and 6-speed torque converter automatic transmission options.
Drive and Terrain Modes
To enhance the vehicle's versatility, the Tata Sierra also features drive modes such as City and Sport, along with terrain modes like Normal, Wet, and Rough. These modes allow drivers to optimize the vehicle's performance according to different driving conditions and terrains, ensuring a smooth and safe driving experience. This feature makes the Sierra a capable vehicle for both urban commutes and off-road adventures, providing adaptability for a wide range of driving scenarios.
