Tata Sierra with 1.5 liter Hyperion engine creates record in India with 29.9 kmpl mileage

Tata Sierra has set a new fuel-efficiency benchmark by entering the India Book of Records for maximum fuel efficiency achieved in 12 hours. In a certified run at NATRAX, Indore, the Hyperion-powered Sierra recorded 29.9 kmpl, surpassing the previous national mark.

According to Tata Motors Passenger Vehicles, the race was conducted on November 30, 2025 by the Pixel Motion team, which drove the 1.5-litre Hyperion petrol variant continuously from 7:00 am to 7:00 pm, stopping only for brief driver changes.

According to the company, its 1.5L Hyperion engine utilizes an advanced combustion system, a wide torque band and friction-optimized components that are designed to maintain efficient fuel delivery and stable performance over the long term.

Mohan Savarkar, Chief Product Officer, Tata Motors, said, “Setting a national efficiency record so early in the Sierra’s journey is a proud moment for us. The Hyperion engine platform was created to push the boundaries of what petrol powertrains can achieve, and this milestone validates that effort.”

In a parallel test under NATRAX specified track conditions, the Sierra also achieved a top speed of 222 km/h, demonstrating the performance limits of the same engine.

Tata Motors said fuel-efficiency and top-speed tests were conducted by trained drivers in a controlled environment, and vehicles delivered to customers will be electronically limited to 190 km/h in line with safety standards.