Ahead of its launch on June 30,2026, Tata Motors has released a video showing the upcoming Sierra.EV conquering Tal Moreeb, the tallest dune in the United Arab Emirates. The clip shows some key features of the electric SUV.
The video describes Tal Moreeb as one of the harshest places on earth. It is part of the largest sand desert in the world, and located near the Liwa Oasis in Abu Dhabi. It is around 300 metres in height.
The air temperature there is 50 degree celsius, whereas the sand surface can heat up to 60 degrees. The video shows a local calling it ‘the terrifying mountain’. Tal Moreeb is also the centrepiece of the famous Liwa International Festival.
In the video, the Sierra.EV is seen driving through highways, and into the deserts. Driving through the desert roads, it suddenly takes a detour and enters the sand. Soon, the Sierra.EV reaches the dune’s base. In between, we can see the driver changing the terrain mode. The Sierra.EV will come with six selectable terrain modes including a fully customizable one.
The dune can be seen in detail in the clip. It is clearly a big challenge for the Sierra.EV. The winds have shaped it in such a way that the climb up is dangerous and cumbersome. The lower section has an incline of 28 degrees. The middle section has 36 degrees and the top crest has a massive 50-degree incline! The bottom and middle sections have loose sand while the top crest has collapsing sand.
The real challenge is to make the car go from the start to finish without veering. Enthusiasts usually spend weeks and months tuning and modifying their mighty off-roader SUVs to get to the top. The engines, suspension setups, transmissions and various other components are often heavily upgraded to conquer this dune. If the engine loses steam mid-way or the vehicle loses momentum, disaster follows!
The Tata Motors team did this attempt in the summer, when the dune is in its wildest form. The surface temperatures are high during this period and the sands are soft and shifting. These put both the vehicle’s abilities and the driver’s skill levels to test.
Later in the clip, we see the Sierra.EV attempting the climb- something that no stock production EV has ever done before. It is seen climbing with consistent momentum. This is important. If the vehicle loses momentum during the climb, it would sink into the sand. It is maintaining a speed of 40+kph.
It soon makes it to the crest section- the trickiest part. The sand there can collapse anytime. The 50-degree incline needs to be covered in the fastest time possible. The vehicle can’t afford to lose momentum or stop here.
The driver engages the ‘Boost mode’, unleashing the full potential of the Sierra.EV’s powertrain. The all wheel drive system, which Tata Motors fondly calls ‘Quad Wheel Drive’ system can be seen in action. The Sierra.EV continues the steep climb and soon reaches the top of the dune, finally conquering it.
The video gives us a closer look at the Sierra.EV’s design. It seems to have enough visual differentiation from the internal combustion engine-powered counterpart, but stays true to the Sierra’s iconic silhouette. The carmaker hasn’t revealed the powertrain details of this EV. However, this video has confirmed that it will have All Wheel Drive, a boost mode, and 500Nm of torque.
The battery size remains unclear, but from what can be seen in the instrument cluster, it could offer a range of 500 km per charge. The Sierra.EV will be based on the same Acti.EV+ architecture as the Harrier.EV. It will, however, have a clear advantage in power to weight ratio and acceleration. It is likely to become Tata’s fastest accelerating EV, when launched. This electric SUV will also come with an independent rear suspension.
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