Tata Sierra EV's smaller battery pack has more power and the bigger one has less, why so?

Tata Sierra EV's smaller battery pack has more power and the bigger one has less, why so?

by with No Comment Car Review

Tata Motors has launched Sierra EV in the Indian market after a long wait. Available at a starting price of just ₹ 18.79 lakh (ex-showroom), this SUV comes with 63 kWh and 75 kWh battery options. One thing was most discussed at the time of launch – why is the power output of the 75 kWh RWD variant less than the 63 kWh RWD?

The 63 kWh model produces 238 PS (175 kW), while the 75 kWh RWD produces only 209 PS (154 kW). This is a difference of 29 PS (about 12%), while the 75 kWh variant is also costlier and has a longer range. Tata has now given an official statement regarding this.

Why is power reduced in bigger packs?

According to Tata Motors, this is not a mistake but an intentional engineering decision. Both batteries are packed in the same volume. The 75 kWh battery uses high-capacity cells and Cell-to-Pack (C2P) architecture, achieving excellent packaging efficiency of 141 Wh/kg and 8.9 km/kWh energy efficiency.

This brings the ARAI range to 665 km (99 km more than 63 kWh). However, this resulted in a slight reduction in operating voltage, resulting in reduced peak power. The company says that the peak torque of 315 Nm is the same in both the RWD variants, so there will be no significant difference in daily driving and city-highway performance. 75 kWh is range-focused, while 63 kWh is performance-oriented.

Design and interior

Sierra EV comes with an attractive design like the ICE model. Its highlights are closed-off grille, end-to-end LED DRL, LED taillights, flush door handles, 19-inch alloy wheels with aero inserts and a large panoramic sunroof (1525mm x 925mm). The 2730 mm wheelbase and 622 liters of boot space add to the practicality.

The cabin has a triple screen setup (two 12.3-inch + 10.25-inch). Light colours, spacious feel, ventilated and memory seats, extendable under-thigh support, rear blinds and leatherette upholstery provide a premium experience.

Features and safety

12-speaker JBL sound system (Dolby Atmos), wireless Android Auto/Apple CarPlay, EV Route Planner, DrivePay (UPI), AirConsole Gaming, iRA.ev connectivity, 540° camera and gesture-controlled powered tailgate are the big features.

For safety, it has features like L2+ ADAS, 6 airbags, strong structure and V2L/V2V. 6 terrain modes and crawl control are also provided for off-road.

Battery, Motor and Range

The 63 kWh battery gives 565 km ARAI range, while the 75 kWh will give 665 km range. Both RWD have 315 Nm torque. AWD option is also available in 75 kWh. Fast charging can add 263 km range in 15 minutes. The speed of 0-100 km/h is completed in 5.8 seconds. Built on the Acti.ev platform, this SUV offers a great combination of performance and range.

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Tata Sierra EV vs Mahindra BE 6: Who is better in price, range, features? Know

Tata Sierra EV vs Mahindra BE 6: Who is better in price, range, features? Know

by with No Comment Car Review

Tata Sierra EV vs Mahindra BE 6: The demand for electric vehicles is increasing rapidly in the Indian auto market. Meanwhile, two strong contenders, Tata Motors' Sierra EV and Mahindra's BE 6 are in direct competition with each other. Both mid-size electric SUVs are coming with premium features, long range and modern design, which will attract families and adventure lovers. Talking about the price, the recently launched Sierra EV can be purchased starting from ₹ 18.79 lakh to ₹ 25.99 lakh (ex-showroom) and BE 6 can be purchased between ₹ 18.90 lakh to ₹ 26.90 lakh.

Sierra EV has been launched as an EV incarnation of the iconic Sierra, with retro-modern looks and Tata's strong EV technology. Whereas BE 6 is part of Mahindra's new Born Electric lineup, which focuses on bold styling and performance. Both the models are 5-seater and are ready for Indian roads. Let us know which of these is going to be a more profitable deal to buy?

Design and interior

The Tata Sierra EV has a combination of the classic Sierra's upright bonnet, split LED headlamps and a blanketed grille. It is 4340 mm long, 1841 mm wide and 1750 mm high, with a dual-tone roof and flush door handles. Mahindra BE 6 is more modern and bold. It is 4371 mm long, 1907 mm wide, 1627 mm high and its ground clearance is 207 mm. The styling of BE 6 looks more sporty and muscular.

The cabin of Sierra EV is premium. It can be bought with triple screen setup (10.25-inch cluster, 12.3-inch infotainment and passenger display), ventilated seats, JBL audio with Dolby Atmos, HUD and panoramic sunroof. The BE 6 also feels luxurious, but the space and material quality of the Sierra EV may seem slightly better. Both have good leg and headroom.

Features and safety

Both have features like wireless charging, dual-zone AC, 360° camera and level-2 ADAS. The Sierra EV has the edge with a powered tailgate and a better sound system, while the BE is stronger on 6 terrain modes and connected tech.

In terms of safety, Sierra EV has 6 airbags, 540° camera and strong structure. BE 6 also comes with good safety features. Both expect a 5-star rating.

Battery, Motor and Range

The Sierra EV is available in two options – 63 kWh (565 km MIDC) and 75 kWh (665 km MIDC, 624 km in AWD). 63 kWh produces 235 bhp and 75 kWh dual-motor gives 300+ bhp and 504 Nm torque. BE 6 has 59 kWh (557 km) and 79 kWh (683 km) batteries, which provide 228-282 bhp and 380 Nm torque. In real-world both can give a range of 450-500 KM. Fast charging is available in both.

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