Mumbai
Mumbai
DS
Dr Santhosh
•17wI was planning to buy the Harrier Adventure X Plus, but the recent launch of the new Sierra has put me in a dilemma. Now I am confused between the Accomplished Plus variant of the Sierra and the Adventure X Plus variant of the Harrier, both in diesel automatic. My monthly usage is around 1,000-1,300km. I also have doubts regarding the performance, refinement and reliability of the 1.5 Kryojet diesel engine of the Tata Sierra compared to the Fiat-sourced 2.0 Kryotec diesel engine of the Harrier.
Autocar India
The Tata Harrier and Sierra are both in different segments, but with the price and even feature overlap, we can understand your dilemma. In terms of engine performance, the 1.5 L Kyyojet diesel is basically the same unit as the 1.5 L diesel from the Curvv and Nexon, thus in that sense it's a proven unit.
As for refinement, both the Tata Sierra and Harrier engines are vocal units, the Sierra being slightly louder of the two. If your usage is mostly in the city, the Sierra would be the better of the two. It feels lighter on its feet, and the smaller footprint will be easier to manage in traffic.
Furthermore, the Sierra sits in the 'right-size-for-India' space; it's just right for our tight and dense traffic, but also large enough inside to offer good room and comfort.
Tata Sierra
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Posted on: 8 Dec 2025
