Engine Displacement: 1,498 cc (Turbo Petrol) / 1,497 cc (Diesel)
The Tata Sierra ICE is powered by Tata’s next-generation 1.5L TGDi Hyperion Petrol engine and the refined 1.5L Kryojet Diesel unit. The petrol engine is a state-of-the-art aluminum-intensive block featuring high-pressure direct injection. The diesel engine is optimized for efficiency and low-end grunt, making it ideal for the Sierra’s heavy SUV footprint.
Max Power: 160 PS @ 5000 rpm (Petrol) / 118 PS @ 4000 rpm (Diesel)
The Hyperion petrol engine delivers a segment-leading 160 PS, providing the Sierra with effortless high-speed cruising capabilities. The Kryojet diesel produces a steady 118 PS, focusing on usable power across the rev range for city and highway duties.
Max Torque: 255 Nm (Petrol) / 280 Nm (Diesel AT)
Torque delivery is where the Sierra excels. The Petrol TGDi offers 255 Nm from as low as 1750 rpm. Interestingly, the Diesel variant paired with the Automatic transmission is tuned to deliver 280 Nm, which is 20 Nm higher than its manual counterpart, ensuring superior overtaking performance.
No. of Cylinders: 4
Unlike the smaller 3-cylinder engines found in compact SUVs, the Sierra utilizes a 4-cylinder configuration across both petrol and diesel options. This inherently provides better NVH (Noise, Vibration, and Harshness) levels and a much smoother power delivery.
Valve Train: DOHC (Double Overhead Camshaft)
Both engines utilize a DOHC setup with 4 valves per cylinder (16 valves total). This allows for precise valve timing and better breathing at higher RPMs, contributing to the vehicle's "Hyperion" performance branding.
Fuel System: GDI (Petrol) / CRDi (Diesel)
The petrol engine uses Gasoline Direct Injection (GDI), which sprays fuel directly into the combustion chamber at high pressure for better atomization. The diesel utilizes a Common Rail Direct Injection (CRDi) system for cleaner combustion and BS6 Phase 2.0 compliance.
0-100 km/h Time: 9.8 Seconds (Petrol TGDi)
In its quickest avatar (the 1.5L Turbo Petrol), the Sierra sprints from 0 to 100 km/h in just 9.8 seconds. This makes it one of the faster SUVs in the mid-size segment, rivaling turbocharged competitors.
Top Speed: 185 km/h
The aerodynamic efficiency of the Sierra, despite its boxy "Alpine" windows, allows it to reach a top speed of 185 km/h. The vehicle remains stable at these speeds due to its wide track and balanced chassis.
