The Tata Sierra is currently available with three engine options – a 160bhp, 1.5L direct-injection turbo, a 106bhp, 1.5L naturally aspirated petrol and a 118bhp, 1.5L diesel. The SUV lineup is set to expand further with the launch of the Sierra EV, which is scheduled to debut on June 30, 2026.
Interestingly, a test mule of the Sierra was recently caught on camera with emission testing kit. Speculations suggest that Tata has started testing the Sierra CNG. While there is no official confirmation about its launch, the Tata Sierra CNG is expected to arrive around 2026 Diwali season.
As of now, there is no clarity whether the Tata Sierra CNG will be available with the 1.5L naturally aspirated or 1.5L turbo petrol engine. If launched, the Tata Sierra CNG is likely to feature the brand’s iCNG Twin-Cylinder Technology, which debuted with the Altroz in 2023. In this setup, two CNG cylinders with (each with a 30-litre capacity) are mounted side-by-side under the floor, helping free up boot space. The spare wheel is relocated beneath the vehicle.
Tata’s iCNG system incudes features such as a leak detection system, automatic fuel shut-off, thermal incident protection and a micro-switch that prevents refuelling when the ignition is on. The carmaker also offers a standard warranty coverage with its factory-fitted iCNG setup.
Tata Sierra EV Launching on June 30 – What to Expect?
In the company’s lineup, the will sit between the Curvv E and Harrier EV. Based on the Acti.ev+ architecture, the SUV is expected to share the 65kWh and 75kWh battery packs with the Harrier EV. It will be available with both RWD (rear-wheel drive) and AWD (all-wheel drive) configurations. The SUV is expected to offer a driving range of over 500km on a single charge.
On the exterior, the Tata Sierra EV is expected to feature a blanked-off grille, redesigned front and rear bumpers, ‘EV’ badging and new aero-optimized alloy wheels. The overall design, cabin layout and features are likely to be identical to its ICE counterpart.