The Tata Sierra has set a new fuel-efficiency benchmark, 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 run 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 uses an advanced combustion system, a wide torque band, and friction-optimised components designed to maintain efficient fuel delivery and stable performance over long durations.

Tata Motors' 1.5L Hyperion engine is used in its Sierra S

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