Tata Sierra Hyperion Engine: Tata Motors’ new midsize SUV Tata Sierra is once again in the headlines. This SUV, with a starting price of Rs 11.49 lakh, has now set a new national record in the India Book of Records. Sierra has set a record of giving the highest mileage of 29.9 kilometers per liter in a period of 12 hours. This unprecedented achievement proves the efficiency of Tata’s 1.5 liter Hyperion petrol engine.
29.9 kmpl mileage, national record in 12 hours drive
Tata Sierra achieved this record by driving continuously from 7 am to 7 pm on 30 November 2025 at NATRAX high speed testing center located in Indore. This drive involved a team called Pixel Motion and very short breaks were taken only to change drivers.
During this period, Tata Sierra gave a mileage of 29.9 kilometers per liter, which has become a new national record, breaking all the previous records of the country. This achievement has been officially recorded in the India Book of Records.
Expressing pride, Mohan Savkar, Chief Product Officer, Tata Motors Passenger Vehicles, said, “Creating this national efficiency record so soon after the launch of Sierra proves our thrust to enhance the efficiency of petrol engines. This record makes Sierra’s value to customers even more special.
Power and efficiency of Hyperion engine
Behind this record breaking mileage is Tata’s new 1.5 liter Hyperion petrol engine. The company claims that this engine has been specially designed for excellent mileage, smooth driving, power and easy driving.
This engine features a special advanced combustion system and low friction architecture, which ensures stable and efficient fuel delivery over long periods of time. This engine also delivers superior torque, giving the vehicle consistent performance and record-breaking mileage. Mohan Savkar said that the Hyperion engine has been developed to push the limits of petrol powertrains.
Sierra is amazing even at top speed
Tata Sierra has proved its capability in terms of mileage as well as performance. In a separate test, the Sierra also achieved a top speed of 222 kilometers per hour (kmph) on NATRAX. This is also another testament to the power of the 1.5 liter Hyperion engine.
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However, the company has clarified that the maximum speed of Tata Sierra that will be sold to the customers will be limited to 190 kmph. This decision has been taken to ensure compliance with the strict safety standards of Tata Motors passenger vehicles. All these tests were conducted on special tracks under expert drivers and strict supervision.
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