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2025 Tata Sierra Complete Guide: ARGOS Platform, Engine Details, AWD Launch, Gearbox Specifications & Pricing

Vyom Patil by Vyom Patil
December 27, 2025
in CARS, Car
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2025 Tata Sierra

Official-style render of the Tata Sierra EV showing its exterior design from both front and rear angles.

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2025 Tata Sierra : The iconic Tata Sierra has made a triumphant return after more than two decades, launching on November 24, 2025 at an introductory starting price of ₹11.49 lakh (ex-showroom). Built on Tata’s revolutionary new ARGOS platform, the Sierra positions itself as a feature-packed mid-size SUV competing directly against the Hyundai Creta, Kia Seltos, and Maruti Suzuki Grand Vitara.

ARGOS Platform: Tata’s New-Generation Architecture

The Sierra is underpinned by Tata Motors’ all-new ARGOS (All-terrain Ready, Omni-Energy and Geometry Scalable Architecture), which represents the company’s most ambitious engineering programme to date. Shailesh Chandra, Managing Director and CEO of Tata Motors Passenger Vehicles Ltd, describes ARGOS as “the highest-scale programme executed by Tata Motors,” involving a new platform, new powertrain family, new top-hat, and updated manufacturing systems.

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The platform’s multi-energy compatibility supports petrol, diesel, CNG, hybrid, and full-electric setups, with the Sierra EV already in development for early 2026 launch. While all current Sierra variants are strictly front-wheel-drive, the ARGOS architecture has been specifically engineered to support all-wheel-drive systems for both ICE and EV variants, paving the way for future AWD models. The platform also supports multiple body styles, wheelbase options, and interior layouts, making a future 7-seater Sierra variant technically feasible.

The Sierra debuts Tata’s next-generation t.idal 2.0 Software Defined Vehicle architecture, featuring an Ethernet-based backbone delivering data speeds up to 1 Gbps. It introduces 5G connectivity a first for any ICE car in India and employs a powerful six-channel vehicle gateway ECU orchestrating communication across 28 ECUs. This advanced architecture enables over-the-air updates for up to 10 ECUs, ensuring the Sierra stays future-ready and continuously evolving.

Engine Options & Specifications

The 2025 Tata Sierra offers three distinct powertrain options, including Tata’s brand-new 1.5-litre direct-injection turbo-petrol engine that marks the company’s entry into the GDi segment.

1.5L Revotron Naturally Aspirated Petrol

The entry-level engine is designed for fuel efficiency and city driving, displacing 1498 cc and producing 106 PS at 6000 rpm with peak torque of 145 Nm at 2100 rpm. This naturally aspirated four-cylinder unit uses Multi-Point Injection (MPi) fuel delivery and comes paired with either a 6-speed manual or 7-speed dual-clutch automatic transmission. It is available across Smart+, Pure, Pure+, Adventure, and Accomplished variants.

1.5L TGDi Hyperion Turbo Petrol

The crown jewel of Sierra’s powertrain lineup is Tata’s all-new 1.5-litre Hyperion TGDi engine a turbocharged direct-injection unit that marks Tata’s entry into the GDi segment. This 1498 cc powerplant produces an impressive 160 PS at 5000 rpm and 255 Nm of torque between 1750-4000 rpm. The engine incorporates advanced technologies including Variable Geometry Turbo, 350-bar direct injection system, Dual Variable Valve Timing, and intelligent lubrication.

The Hyperion TGDi features AI-based software models ensuring instant power delivery, smooth acceleration, improved fuel economy under varied operating conditions, lower NVH at idle, and sustained peak performance over time. This engine is paired exclusively with a 6-speed AISIN-sourced torque converter automatic and is reserved for Adventure+, Accomplished, and Accomplished+ variants only. Its output matches the Hyundai 1.5 TGDi while delivering comparable torque figures.

1.5L Kryojet Diesel

The diesel option uses a refined version of the familiar 1.5-litre Kryotec turbocharged diesel found in the Tata Curvv. This 1497 cc four-cylinder unit produces 118 PS at 4000 rpm, while torque output varies by transmission: 260 Nm with the 6-speed manual and an enhanced 280 Nm with the 6-speed automatic between 1500-2750 rpm. The diesel-automatic variant’s additional 20 Nm makes it the torquiest option in the entire Sierra lineup, ideal for highway cruising and high-mileage users. The engine uses CRAIL (Common Rail Direct Injection) fuel delivery system.

Gearbox & Transmission Options

The Sierra offers a comprehensive range of five distinct transmission options across its variants. The 6-speed manual transmission is available with both the 1.5L naturally aspirated petrol and 1.5L diesel engines, designed for smooth city driving and optimal fuel efficiency.

For automatic options, the 7-speed Dual-Clutch Transmission (DCT) pairs exclusively with the 1.5L naturally aspirated petrol engine, offering quick shifts and improved fuel efficiency compared to traditional torque converters. The 6-speed torque converter automatic from AISIN is exclusively paired with the 1.5L TGDi Hyperion turbo-petrol engine, renowned for its reliability and smooth operation. A similar 6-speed torque converter automatic is also available with the 1.5L diesel engine, delivering refined performance with that additional 20 Nm torque advantage.

All automatic variants come equipped with paddle shifters for a more engaging driving experience. It’s worth noting that Tata’s DCT initially had mixed reliability reports but has since improved, while the AISIN automatic units used in turbo-petrol and diesel variants are known for their proven reliability.

AWD (All-Wheel Drive) Launch Details

One of the most anticipated features of the Sierra is the confirmed All-Wheel Drive system, though it won’t be available at launch. This marks Tata’s return to ICE 4×4 offerings after the Hexa was discontinued in 2020.

The Sierra EV AWD is expected to launch in 2026 alongside the Sierra EV, featuring a dual-motor configuration similar to the Harrier EV and offering both RWD and AWD from launch. The Sierra ICE AWD has been confirmed for early 2027 by Vivek Srivatsa, Tata Motors’ Chief Commercial Officer, who stated: “One of the reasons we went for the ARGOS was to make the Sierra AWD-capable. We’ve seen over the past few years the need for an AWD as a personality increasing among Indian consumers.”

The AWD strategy is validated by strong market response to Tata’s existing offerings. The Harrier EV AWD already accounts for 35% of its sales, surpassing Tata’s expectations and demonstrating growing demand for AWD SUVs in India. The ARGOS platform’s AWD-ready design means future 4×4 variants can be introduced without major re-engineering, though Tata has not yet revealed which specific engine and gearbox combinations will receive AWD capability.

Dimensions & Off-Road Capability

The Sierra offers impressive dimensions that place it closer to larger SUVs like the Tata Harrier rather than traditional compact SUVs. It measures 4340 mm in length, 1841 mm in width, and 1715 mm in height, with a class-leading wheelbase of 2730 mm—the longest in its segment. Ground clearance stands at a capable 205 mm, while the water wading capacity of 450 mm ensures confidence during monsoon conditions and light water crossings.

The boot offers a segment-leading 622 litres of cargo space, expandable to 1257 litres with the rear seats folded. The fuel tank holds 50 litres, while the turning radius of 5.3 metres ensures good manoeuvrability in urban environments.

Off-Road Geometry

The Sierra’s off-road geometry is impressive for a front-wheel-drive SUV. The approach angle of 26.5° allows confident entry into steep inclines, while the departure angle of 31.6° prevents rear bumper scrapes when exiting. The breakover angle of 23.1° handles summit crests well, and the turning diameter of 10.6 metres aids tight manoeuvres. Tata claims the Sierra has better approach and departure angles than some high-end luxury vehicles.

The SUV features Frequency Dependent Damping (FDD) that adapts to road conditions for improved ride quality, along with three Terrain Modes Auto, Wet, and Rough for enhanced capability across different surfaces, even without AWD.

Interior Features & Technology

The Sierra’s cabin represents a significant leap in Tata’s interior design, debuting several segment-first features. The flagship triple-screen dashboard layout (available on Accomplished+ trim) comprises a 10.25-inch fully digital driver’s display, a 12.3-inch central touchscreen infotainment powered by Snapdragon processor, and a 12.3-inch dedicated co-driver display for independent entertainment, music, video, and gaming. Lower variants receive a dual-screen setup.

The audio experience is delivered through a 12-speaker JBL Black sound system with Dolby 5.1 and Dolby Atmos support. A distinctive SonicShaft Soundbar is integrated into the dashboard below the centre AC vents. Connectivity features include in-built 5G (first for any ICE car in India), an AR Heads-Up Display with 19 smart visuals (making it India’s first homegrown ICE with AR HUD), wireless Android Auto and Apple CarPlay, MAPPLS in-built navigation, and the iRA connected car suite with 75 intelligent features including 5 industry-firsts.

Comfort features include powered and ventilated front seats with a 6-way powered driver seat featuring memory and welcome function. The segment-first extendable thigh support for both driver and front passenger enhances long-drive comfort. Rear passengers benefit from a recline function, while the largest-in-segment panoramic sunroof (voice-assisted) floods the cabin with natural light. The powered tailgate with hands-free functionality adds convenience, complemented by dual-zone automatic climate control, ambient lighting, and an air purifier on the Accomplished+ variant.

Safety Features

Tata has equipped the Sierra with a comprehensive safety suite, aiming for a 5-star Bharat NCAP rating. Standard safety equipment across all variants includes 6 airbags, ABS with EBD, Electronic Stability Program (ESP) with 20+ functionalities, electronic parking brake with auto-hold (standard from base variant), hill assist, ISOFIX child seat mounts, and all-wheel disc brakes.

Higher variants receive Level 2+ ADAS with 22 features including adaptive cruise control, lane keep assist, lane departure warning, high beam assist, autonomous emergency braking, rear cross traffic alert, and blind spot monitoring. The 360-degree camera system with 14 views includes a blind view monitor, complemented by front and rear parking sensors and a tyre pressure monitoring system (TPMS).

Variant-wise Pricing

The Sierra is available in seven variants: Smart Plus, Pure, Pure Plus, Adventure, Adventure Plus, Accomplished, and Accomplished Plus. Full official pricing will be announced in early December 2025.

VariantPrice (Ex-showroom)
Smart Plus 1.5 Revotron MT (Base)₹11.49 Lakh (Introductory)
Pure 1.5 Revotron MT₹11.99 Lakh (Expected)
Pure Plus 1.5 Revotron MT₹12.29 Lakh (Expected)
Adventure 1.5 Revotron MT₹13.09 Lakh (Expected)
Adventure Plus 1.5 TGDi AT₹15.99 Lakh (Expected)
Accomplished 1.5 TGDi AT₹17.49 Lakh (Expected)
Accomplished Plus 1.5 TGDi AT₹18.99 Lakh (Expected)
Accomplished Plus 1.5 Kryojet AT (Top)₹20.49 Lakh (Expected)

Note: Above prices are indicative based on available information. Final official variant-wise pricing is pending Tata Motors’ announcement in early December 2025.

Colour Options

The Sierra is available in six exterior colour options, all featuring a contrasting black roof: Andaman Adventure (Yellow), Bengal Rouge (Red), Coorg Clouds (Silver), Munnar Mist (Green), Pure Grey, and Pristine White. A Dark Edition with an all-black theme and a Roq Edition accessory pack (priced from ₹50,000) featuring off-road enhancements are also expected in the future.

Booking & Delivery Timeline

The Sierra was officially launched on November 24, 2025, with bookings set to open on December 16, 2025 through Tata dealerships and the online portal. Deliveries are scheduled to commence from January 15, 2026, with full variant-wise pricing expected in early December 2025. The anticipated waiting period is 1-2 months for in-demand variants. While some dealerships have started accepting unofficial pre-bookings ranging from ₹11,000 to ₹51,000, buyers are advised to wait for official booking channels.

Sierra EV: Coming in 2026

The Tata Sierra EV is confirmed for launch in early 2026, based on Tata’s Gen 2 Acti.EV platform. Expected specifications include battery options of 55-65 kWh (likely borrowing from Curvv EV and Harrier EV), range of up to 500 km on a full charge, and fast charging capability from 20% to 80% in approximately 25 minutes. The EV will offer both RWD and AWD configurations from launch, with the AWD version featuring a dual-motor setup. Special features include Vehicle-to-Load (V2L) and Vehicle-to-Vehicle (V2V) charging capabilities. Expected pricing falls between ₹17-22 lakh based on the Curvv EV and Harrier EV positioning.

Competition

The Tata Sierra competes in India’s most competitive SUV segment against established players:

ModelStarting PriceEngine Options
Tata Sierra₹11.49 LakhPetrol/Diesel
Hyundai Creta₹10.73 LakhPetrol/Diesel
Kia Seltos₹10.79 LakhPetrol/Diesel
Maruti Grand Vitara₹10.77 LakhPetrol/Hybrid
Skoda Kushaq₹10.89 LakhPetrol
Honda Elevate₹11.69 LakhPetrol

The Sierra’s key differentiators include its iconic design heritage, longest wheelbase in segment (2,730 mm), largest boot space (622 litres), segment-first triple screen setup, 5G connectivity, AR HUD, 450mm water wading capacity, and the most powerful 160 PS turbo-petrol engine option in this class.

The Verdict: Which Variant Should You Buy?

For budget-conscious buyers, the Pure diesel MT offers the best value proposition with essential features and proven diesel efficiency. Performance enthusiasts should target the Adventure+ TGDi AT for its powerful 160 PS turbo-petrol engine, adequate feature set, and reliable AISIN automatic transmission. Those seeking the complete premium experience should consider the Accomplished+ diesel AT, which delivers maximum torque (280 Nm), the full triple-screen setup, complete ADAS suite, and all premium features.

For buyers who consider AWD capability essential, waiting for the 2026 Sierra EV or the 2027 ICE AWD variants would be worthwhile. The Sierra’s competitive pricing, segment-leading boot space, longest wheelbase, impressive off-road geometry with 26.5° approach angle, 31.6° departure angle, and 450mm water wading capacity, combined with its future-ready ARGOS platform, make it a compelling choice in India’s crowded mid-size SUV segment.

Disclaimer: Specifications and pricing are based on official announcements and verified sources as of November 2025. Some pricing details are indicative pending official release. Features may vary by variant. Always confirm details with an authorized Tata Motors dealer before purchase.

Read more: Tata Sierra officially unveiled ahead of its November 2025 launch – full details here.

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Vyom Patil

Vyom Patil

Founder & Editor-in-Chief at Motors77. A Pune-based automotive enthusiast with over 10 years of experience following the auto industry. Vyom leads Motors77's editorial direction, ensuring accurate, well-researched coverage of cars, bikes, and EVs for Indian readers.

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