Tata Sierra EV Vs Diesel: Top-Spec Variants Compared In Detail

Tata Sierra EV or diesel? Compare the top-spec variants to find the one that suits your needs

Tata Motors now offers the Sierra with both diesel and electric powertrains. With both versions now on sale in India, buyers considering the top-spec model have two very different options to choose from. This comparison takes a closer look at the Sierra Accomplished Plus Diesel AT and the Sierra EV Empowered QWD to see what each one offers and where they differ.

Powertrain And Performance

The Sierra Accomplished Plus Diesel AT runs a 1.5-litre KryoJET turbo-diesel engine producing 118 bhp and 280 Nm of torque. It comes paired with a torque converter automatic gearbox that sends power to the front wheels.

The Sierra EV Empowered QWD sits in a different league when it comes to performance. Built on Tata's Acti.ev+ architecture, it packs a 75 kWh battery pack with dual electric motors driving all four wheels. Combined output stands at 349 bhp and 504 Nm of torque. With Boost Mode active, the sprint from 0 to 100 kmph takes 5.8 seconds. Tata quotes an MIDC-certified range of 624 km on a full charge. The battery also comes with a lifetime warranty covering 15 years from the date of first registration.

Features: Most Of The List Is Shared

Looking at the cabin, the two top-spec variants share more features than most buyers might expect. Both get a triple-screen dashboard with two 12.3-inch displays and a 10.25-inch digital instrument cluster. A panoramic sunroof, powered and ventilated front seats, and a 12-speaker JBL audio system with Dolby Atmos are also common to both.

The shared feature list continues with dual-zone climate control, a powered tailgate, wireless Android Auto and Apple CarPlay, connected car technology, a head-up display, ambient lighting, Boss Mode, a wireless charger and Level 2 ADAS.

Where The EV Pulls Ahead

Despite the long list of shared features, the Sierra EV brings several exclusive additions that the diesel version does not offer. These include Vehicle-to-Load support, Vehicle-to-Vehicle charging, the DrivePay in-car payment system, Summon Mode, Auto Park Assist, over-the-air software updates and a 540-degree camera with an underbody view.

Since the Sierra EV Empowered QWD comes with all-wheel drive, it also gets six terrain modes covering Sand, Rock Crawl, Snow/Grass, Mud/Gravel and a Custom setting. A low-speed cruise control function for off-road driving is also part of the package.

Boot Space And Cabin Practicality

On the practical side, both variants offer the same amount of space. Boot capacity stands at 622 litres and expands to 1,257 litres with the rear seats folded. Cabin space, rear-seat comfort, headroom and legroom are also the same across both versions.

Exterior Differences

The two SUVs look very similar from the outside as well. The Sierra EV gets a cleaner front end with additional gloss black elements, EV-specific badging and a slightly different bumper design. Beyond these changes, the overall shape, clamshell tailgate, flush door handles, LED lighting and the Sierra-inspired rear glass design remain the same across both variants.

Price Gap And Which One To Consider

The comparison above is based on ex-showroom prices, where the top-spec Sierra EV costs around Rs 4.5 lakh more than the equivalent diesel variant. However, the actual ownership gap can be quite different once state taxes and registration charges are taken into account.

In states such as Maharashtra, electric vehicles currently benefit from a road tax and registration fee waiver, while diesel vehicles attract road tax based on their invoice value. That means the on-road price difference between the two top-spec Sierra variants can be noticeably smaller than the ex-showroom gap. Similar incentives are also available in some other states, including Telangana, making the EV more competitive from the day of purchase.

Running costs are another part of the equation. A diesel SUV returning around 14 kmpl and driven for about 1,500 km a month will typically cost much more to fuel than an EV charged at home, although the exact saving depends on local fuel prices and electricity tariffs. For buyers who cover high monthly distances and have access to home charging, those lower running costs can gradually offset the higher purchase price over time. Buyers with lower annual mileage, however, may take longer to recover the initial premium.