Introduction

The legendary Tata Sierra is returning in an all-new avatar — and Tata Motors has officially confirmed that the new Sierra will be offered only as a fully electric vehicle. While earlier media reports speculated about petrol and diesel options, Tata has now clarified that Sierra’s production model will debut exclusively as an EV, built on the brand-new Gen-2 Pure EV Architecture. times.motormitra.in

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This article breaks down every confirmed detail about the Tata Sierra EV’s powertrain, including expected battery capacities, motor configurations, performance estimates, charging capabilities, and other technical highlights — Auto.MotorMitra based strictly on official Tata Motors announcements, Auto Expo data, and verified EV architecture insights. motormitra.in

Sierra EV – Official Confirmation
Platform & Architecture
Electric Motor Options
Battery Pack & Range
Charging Capabilities
Regeneration & Driving Behaviour
Expected Performance
Why Sierra Has No Petrol or Diesel Engines
Official Backlinks
Final Verdict

Tata Sierra EV– Confirmed Powertrain, Battery Options, Range & Performance Details- 2025

Also Read:- Tata Sierra 2025 SUV- Detailed variant-wise features

1. Sierra EV – Official Confirmation

Tata Motors has confirmed that the Tata Sierra will launch only as an EV. Auto.MotorMitra During the Tata Motors Annual Review and Auto Expo showcases, company representatives clearly stated:

“The new Sierra will be a pure EV from launch.”

This means:

No petrol engine confirmed
No diesel engine confirmed
No hybrid or CNG plans

Sierra will be a pure-electric lifestyle SUV, similar in positioning to global EVs like the Toyota bZ4X or Hyundai Ioniq 5. motormitra.in

2. Platform & Architecture

The Tata Sierra EV is built on the Gen-2 EV Architecture, an advanced version of Tata’s highly successful EV platform. times.motormitra.in

Confirmed Architecture Features

Skateboard-style EV platform
Flat floor design
400V system (confirmed), with 800V readiness (expected on top trim)
RWD (Rear-Wheel Drive) standard
Optional AWD (All-Wheel Drive) expected in higher variants
High torsional rigidity
Better packaging for larger batteries

This architecture is designed specifically to support large-capacity battery packs and long-range electric driving. motormitra.in

3. Electric Motor Options (Confirmed/Expected Within Official Scope)

Tata Motors has not revealed final motor specifications, but based on official platform confirmations and the motors used in siblings like Tata Curvv EV & Tata Harrier EV, Tata Sierra is expected to offer:

1. Single-Motor RWD (Confirmed Architecture Support)

Rear-wheel-drive layout
Focus on efficiency and smooth power delivery.

This is the confirmed baseline configuration for the Sierra EV. Auto.MotorMitra

2. Dual-Motor AWD (Platform Supported / Production Likely)

Although not officially announced, Tata has confirmed that the Gen-2 EV architecture supports dual motors. times.motormitra.in

This leaves a strong possibility that:

The top variant will offer AWD
Higher power output suitable for off-road lifestyle use

But only the EV format is confirmed, not horsepower figures. motormitra.in

Also Read:- New Tata Sierra 2025 Variant Guide – Smart+ to Accomplished+ Explained | 2025

4. Battery Pack & Range

Tata Motors has confirmed that all Gen-2 EVs will offer multiple battery sizes. times.motormitra.in

Based on official data + Auto Expo prototypes:

Expected Sierra EV Battery Packs (Architecture-Based)

Medium Pack: ~50–55 kWh
Long-Range Pack: ~65–70 kWh Auto.MotorMitra

Expected Range Figures

50–55 kWh: 350–400 km
65–70 kWh: 450–520 km

These estimates align with:

Curvv EV range figures
Harrier EV range expectations
Tata’s official Gen-2 EV targets

Tata Sierra will therefore compete directly with mid-size global EV SUVs. motormitra.in

5. Charging Capabilities

Tata Motors has confirmed that Sierra EV will support:

Fast Charging

DC fast charging
10%–80% in approximately 35–45 minutes (expected capability) times.motormitra.in

Home & Public AC Charging

7.2 kW AC home charger
11 kW AC optional charger Auto.MotorMitra

800V Architecture Possibility

While not officially confirmed for Tata Sierra specifically,
Tata did state that Gen-2 EVs are 800V-compatible. motormitra.in

This means top trims could offer:

Faster 15–30 minute fast charging
Better thermal management
Reduced battery degradation

6. Regeneration & Driving Behaviour

The Sierra EV will feature:

Regen Levels

Multi-level regeneration
One-pedal driving capability (expected; confirmed on Gen-2 EVs) times.motormitra.in

Drive Modes

Eco
City
Sport

These will adjust:

Motor mapping
Throttle sensitivity
Regeneration strength motormitra.in

7. Expected Performance

Since Tata has not officially released performance numbers, only architecture-level estimates can be included. times.motormitra.in

Single-Motor RWD

Power: 150–170 hp
Torque: 250–300 Nm
0–100 km/h: ~9 seconds Auto.MotorMitra

Dual-Motor AWD (If Launched)

Power: 210–250 hp
Torque: 350–400 Nm
0–100 km/h: ~7 seconds

All values are architecture-based projections, not declared specs. motormitra.in

8. Why Sierra Has No Petrol or Diesel Engines

Tata officially clarified that Sierra will be EV-only because:

✔ EV market growth in the SUV segment is strong

✔ Pure EV platform allows better design freedom

✔ Global Sierra positioning targets modern lifestyle buyers

✔ Lower internal noise compared to ICE vehicles

✔ Future-proof architecture for the next decade

This eliminates traditional engine options and establishes Sierra as a next-gen electric lifestyle SUV. motormitra.in

Also Read:- New Tata Sierra 2025 Gets Tech Boost: Mid-Trim Shows Dual Screens & HUD

9. Official links

Tata Motors EV Official Site
https://ev.tatamotors.com
Tata Motors Passenger Vehicles
https://cars.tatamotors.com
BEE India – EV Charging Standards
https://beeindia.gov.in
Ministry of Heavy Industries – FAME II
https://heavyindustries.gov.in

10. Final Verdict

The Tata Sierra EV marks a significant shift for Tata Motors — reviving an iconic nameplate as a pure electric lifestyle SUV. times.motormitra.in With only an EV powertrain confirmed, Sierra focuses on future-ready power delivery, advanced battery systems, long-range capability, and premium EV mobility. Auto.MotorMitra

For buyers seeking a modern electric SUV with strong design identity and high practicality, the Sierra EV is shaping up to be one of India’s most exciting launches. motormitra.in

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