People still remember the old Sierra from the 90s it was known for its tough boxy look and off-road feel. Now Tata Motors has brought it back with a modern twist. The new Sierra keep the same name but comes with updated features like big screens and ADAS (driver assistance tech). Prices start at Rs 11.49 lakh. As for mileage the diesel manual give the best at 21.26 kmpl. Petrol and automatic versions give slightly lower numbers but are still good for daily use.
The Sierra comes with three engine options depending on what you need. First is the 1.5-litre petrol engine which it makes 106PS and 145Nm which is good for everyday driving. You get a 6-speed manual with around 17.4 kmpl while the 7-speed automatic gives about 16.9 kmpl. This engine is available in the Smart Pure Adventure and Accomplished variants which many buyers prefers it.
Next is the more powerful turbo-petrol. This 1.5-litre engine makes 160PS and 255Nm so it feels a lot more lively. It comes with a 6-speed automatic gearbox which is giving more better driving feel. Mileage is around 15.3 kmpl (ARAI) but in real life you can expect around 12–14 kmpl. This one is offered in the Adventure and Accomplished variants which is making it more premium feel.
Lastly there’s the diesel engine. The 1.5-litre unit produces 118PS and up to 280Nm depending on the gearbox. The manual give the best mileage at 21.26 kmpl while the automatic deliver around 19.22 kmpl. Diesel is available from the Smart variant onwards. It’s the best choice for long drives and many owners easily gets around 18 kmpl on highways.

The Sierra is built to handle rough roads easily. It gets 205mm ground clearance so bad roads and speed breakers are not a problem. The approach departure and ramp angles also helps when roads get uneven. Boot space is quite big at 622 litres and expands to 1257 litres with seats folded. Fuel tank is 50 litres and buyers get 17-inch or 19-inch wheels depending on the variant which is giving better road presence.
The suspension handle bumps smooth and all four wheels gets disc brakes for better control. There is also an SOS e-call feature for emergencies and the iRA connected tech lets buyers track and control many functions from their phone. Which is making the car more safer and connected for users.
On the mileage side the new Sierra diesel remains the most efficient option in the lineup going up to 21.26 kmpl for the manual and around 19.22 kmpl for the automatic. Petrol options give lower numbers but is more about smooth and easy driving.

The diesel version continue to be the most fuel-efficient in the Sierra lineup it can deliver up to 21.26 kmpl with the manual while the automatic version offer around 19.22 kmpl. Petrol options return slightly lower figures but feel smoother and easier to drive especially in daily city use which many people prefer it.