We compare price, range, charging, features and performance to find out which premium electric SUV deserves your money.
These two cars occupy the top end of the mid-size luxury electric SUV segment, but the Tata Sierra EV is the more affordable of the two. Even the all-wheel-drive version of the Tata is cheaper than the fully loaded Mahindra BE 6.
| Model | Variant | Ex-showroom Price |
| Tata Sierra EV | Empowered A RWD | Rs 24.79 lakh |
| Tata Sierra EV | Empowered A AWD | Rs 25.99 lakh |
| Mahindra BE 6 | Pack Three | Rs 26.90 lakh |
Battery, Range and Performance
However, when it comes to performance, both vehicles take different approaches. The BE 6 focuses on driving range and rear-wheel-drive performance. Meanwhile, the Sierra EV is the first SUV in its class to offer all-wheel drive. Therefore, buyers looking for better traction and occasional off-road capability may find Tata’s dual-motor setup more appealing.
| Specification | Tata Sierra EV | Mahindra BE 6 |
| Battery Pack | 75 kWh | 79 kWh |
| Drive Layout | RWD / AWD | RWD |
| Power | 209 hp (RWD)380 hp combined (AWD) | 286 hp |
| Torque | 315 Nm (RWD)504 Nm (AWD) | 380 Nm |
| Claimed Range | 665 km (RWD)624 km (AWD) | 683 km |
Despite the Mahindra BE 6 offering a best-in-class claimed range of 683 km, the Sierra EV counters it with higher torque and a dual-motor all-wheel-drive system, which is unavailable in any other vehicle in its class.
Charging
As more buyers opt for fast charging, the Mahindra BE 6 has an advantage in this area thanks to its higher DC fast-charging capability and the availability of an 11.2 kW AC charger.
| Specification | Tata Sierra EV | Mahindra BE 6 |
| AC Charging Support | 7.2 kW | 7.2 kW / 11.2 kW |
| DC Fast Charging | 110-120 kW | 180 kW |
| AC Charging Time | 8.9-10.5 hrs | 8-11.7 hrs |
| DC Charging (20-80%) | 25-26 mins | 20 mins |
Thus, if you frequently go on long journeys and rely on fast chargers, the BE 6 may be the better choice.
Comparison of Features
Inside, both SUVs are packed with technology and premium features. However, Tata has focused more on offering a luxurious ownership experience by including several convenience features that are absent in the Mahindra.
| Feature | Tata Sierra EV | Mahindra BE 6 |
| 12.3-inch Touchscreen | ✔ | ✔ |
| Digital Driver Display | 10.25-inch | 12.3-inch |
| Passenger Display | ✔ | ✖ |
| Head-up Display | ✔ | ✔ |
| Powered Driver Seat | ✔ | ✔ |
| Powered Passenger Seat | ✔ | ✖ |
| Ventilated Front Seats | ✔ | ✔ |
| Boss Mode | ✔ | ✖ |
| Rear Reclining Seats | ✔ | ✔ |
| Openable Panoramic Sunroof | ✔ | Fixed Glass Roof |
| Audio System | 12-speaker JBL Black | 16-speaker Harman Kardon |
| Wireless Android Auto & Apple CarPlay | ✔ | ✔ |
| Air Purifier | ✔ | ✔ |
| OTA Updates | ✔ | ✔ |
| Powered Tailgate | ✔ | ✔ |
| NFC Key Card | ✔ | ✖ |
The BE 6 impresses with its premium 16-speaker Harman Kardon audio system and larger digital driver’s display. However, the Sierra EV offers a broader feature list, including a passenger display, powered front passenger seat, Boss Mode, an openable panoramic sunroof, an NFC key card, and rear sunshades.
Driving Technologies
Apart from its performance, the Tata Sierra EV offers greater versatility thanks to its all-wheel-drive system and multiple terrain modes. As a result, it is better suited to buyers who regularly drive on different types of roads.
| Feature | Tata Sierra EV | Mahindra BE 6 |
| Drive Modes | Eco, Normal, Sport | Range, Default, Everyday, Race |
| Terrain Modes | 8 modes | Snow only |
| AWD | ✔ | ✖ |
| Drift Mode | ✔ | ✖ |
| Boost Mode | ✔ | ✔ |
| Adaptive Cruise Control | ✔ | ✔ |
The BE 6 focuses more on sporty driving characteristics, while the Sierra EV combines performance with better all-terrain capability.
Safety Comparison
Both manufacturers have equipped their flagship electric SUVs with a comprehensive safety package. Six airbags, Level 2+ ADAS, and automatic parking assist are standard on both models.
| Safety Feature | Tata Sierra EV | Mahindra BE 6 |
| Airbags | 6 | 6 |
| Level 2+ ADAS | ✔ | ✔ |
| Automatic Parking Assist | ✔ | ✔ |
| Camera System | 540-degree View | 360-degree |
| Parking Sensors | Front & Rear | Front & Rear |
| Disc Brakes | Four-wheel | Four-wheel |
| TPMS | ✔ | ✔ |
| ESC | ✔ | ✔ |
| Hill Hold Assist | ✔ | ✔ |
| Auto-dimming IRVM | ✔ | ✔ |
The Sierra EV holds a slight advantage with its 540-degree camera system, which improves visibility beneath the vehicle.
Dimensions
In terms of dimensions, the Mahindra BE 6 is slightly larger, offering a longer wheelbase and marginally more boot space. On the other hand, the Sierra EV is taller than its rival.
| Specification | Tata Sierra EV | Mahindra BE 6 |
| Length | 4,340 mm | 4,371 mm |
| Width | 1,841 mm | 1,907 mm |
| Height | 1,750 mm | 1,627 mm |
| Wheelbase | 2,730 mm | 2,775 mm |
| Ground Clearance | 205 mm | 207 mm |
| Boot Space | 450 litres | 455 litres |
The Mahindra BE 6 stands out with its impressive range, faster charging capability, and premium interior. However, the Tata Sierra EV presents a stronger overall value proposition thanks to its competitive pricing, proper all-wheel-drive system, multiple terrain modes, and several additional convenience features unavailable in the BE 6.
In summary, buyers who prioritise range and charging speed may prefer the Mahindra BE 6, while those looking for greater versatility and better overall value may find the Tata Sierra EV more appealing on paper.
