Engine Options at a Glance
Engine Type | Key Specs | Transmission Options | Best For / Use Case |
1.5-litre NA Petrol | 106 PS, 145 Nm | 6-speed manual or 7-speed DCT/AT | City driving, daily commuting, smooth driving experience |
1.5-litre TGDi Turbo-Petrol | 160 PS, 255–260 Nm | 6-speed Automatic (AT) only | Enthusiasts, highway runs, those who want strong power & quick acceleration |
1.5-litre Diesel (Kryojet) | 118 PS, 260–280 Nm (varies with transmission) | 6-speed Manual (MT) or 6-speed Torque Converter Automatic (AT) | Long-distance driving, fuel-efficient highway touring, heavy commuting |
Currently Available Powertrains (Petrol / Diesel)
1.5-Litre NA (Naturally Aspirated) Petrol
Power: ~106 PS
Torque: 145 Nm
Gearbox: 6-speed Manual / 7-speed DCT
Best for: Smooth city drives, daily use, budget-friendly running
1.5-Litre Turbo-Petrol (TGDi)
Power: ~160 PS
Torque: 255–260 Nm
Gearbox: 6-speed Automatic
Best for: Performance lovers, highway cruisers, effortless driving
1.5-Litre Diesel
Power: ~118 PS
Torque: 260–280 Nm
Gearbox: 6-speed Manual / 6-speed Automatic
Best for: Long-distance travel, better mileage, load handling
FAQs — Tata Sierra
Q1. Is Tata Sierra available in CNG?
Not yet. Tata hasn’t launched a CNG variant for Sierra as of now.
Future possibility: Yes, because the platform is CNG-ready.
Q2. Will Tata Sierra come in an Electric (EV) version?
Yes! Tata has confirmed that a Sierra EV is under development.
Expected timeline: Future launch – not yet on sale.
Q3. Which Sierra engine is best for city driving?
1.5 NA Petrol — smooth power delivery and cost-efficient for daily traffic.
Q4. Which engine is best for performance?
1.5 TGDi Turbo-Petrol — more power, quick acceleration, only automatic for convenience.
Q5. Does Tata Sierra diesel get an automatic transmission?
Yes — the 1.5-litre diesel comes with a 6-speed AT option as well.
Q6. Which variant gives the best mileage?
The diesel engine generally offers the best fuel efficiency — especially for highway usage and high-running users.
Q7. What is the power difference between Petrol and Diesel?
Turbo-Petrol: ~160 PS
Diesel: ~118 PS
→ Petrol Turbo is significantly more powerful.














