What is the ARAI-certified mileage for the Tata Sierra petrol and diesel engines?

The 1.5L TGDi Hyperion petrol engine has an ARAI-certified mileage of 13.5 kmpl, and the 1.5L Kryojet diesel engine offers 18.8 kmpl.

How many bookings did the Tata Sierra receive?

The Tata Sierra SUV crossed 1 lakh bookings within 24 hours of opening reservations.

When did Tata Sierra deliveries begin, and how many have been made?

Deliveries for the Tata Sierra commenced on January 15, 2026, with over 10,000 units delivered.

Home / Business and Economy / Tata Sierra Mileage: Real vs. Claimed Figures

Tata Sierra Mileage: Real vs. Claimed Figures

24 Mar

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Summary

Real-world mileage for petrol is 13.5 kmpl, diesel is 18.8 kmpl.
Over 1 lakh bookings received within 24 hours of launch.
More than 10,000 units delivered since January 15, 2026.

Tata Sierra Mileage: Real vs. Claimed Figures

Tata Motors relaunched the Sierra SUV in November 2025, featuring a redesigned model with new engine options. Despite initial excitement and strong sales figures, including over 1 lakh bookings within 24 hours and more than 10,000 deliveries starting January 15, 2026, questions arose regarding its fuel efficiency.

While initial reports hinted at extraordinary mileage, official ARAI certification figures obtained via RTI reveal a different story. The 1.5L TGDi Hyperion petrol engine achieves 13.5 kmpl, and the 1.5L Kryojet diesel engine delivers 18.8 kmpl. The naturally aspirated petrol variant awaits its ARAI certification.

The Tata Sierra, priced at Rs 11.49 lakh (ex-showroom), faces stiff competition. Tata Motors is prioritizing increased production, aiming for 15,000 units monthly, and is preparing to launch an electric variant by June 2026.

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