TL; DR
- Although Tata already has a 1.5-liter direct-injection turbo-petrol engine, the base models of the vehicle will feature a new 1.5-liter NA engine that shares its basic architecture with the turbo engine.
- The inclusion of a NA petrol engine could help the Indian automaker control the cost of the Sierra’s base trims, which are often the best-selling models in India.
- Meanwhile, Tata Motors has revealed the Sierra in all its glory. The production-spec version of the mid-sized SUV features an upright front stance, connected LED DRLs and signature headlights, a blacked-out central grille, and minimal silver cladding along the bottom.
Ahead of the November 25 launch of the Tata Sierra, reports about the vehicle’s engine have surfaced online. It was previously rumored that the car would sport a 1.5-liter NA petrol engine. Now, we also have details about the cylinder count, power figures, and the transmission options.
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Tata Sierra Engine Specifications
Although Tata already has a 1.5-liter direct-injection turbo-petrol engine, the base models of the vehicle will feature a new 1.5-liter NA engine that shares its basic architecture with the turbo engine. However, since it is a naturally-aspirated engine, it doesn’t include the high-pressure fuel injection system and the turbocharger.
The 1.5-liter NA petrol engine, unlike the one on the Nexon, will feature four cylinders. It is expected to deliver 120hp of peak power and 140 Nm of peak torque, similar to the 1.5-liter NA petrol engine in the Maruti Grand Vitara, Hyundai Creta, and Kia Seltos. Reports also suggest that the company is working to lower overall NVH levels and increase fuel efficiency.
While reports don’t specify the transmission options available with the 1.5-liter NA petrol engine, we can make an educated guess. Other popular cars in the segment, such as the Hyundai Creta or Kia Seltos, pair their 1.5L NA petrol engine with a six-speed manual transmission. The availability of an additional gear helps drivers extract more mileage from the drivetrain, especially while cruising at higher speeds.
Maruti Suzuki’s Grand Vitara, on the other hand, sticks with a five-speed transmission for the base trim. While the Korean models also feature a CVT transmission, the Japanese competitor to the upcoming Tata Sierra boasts a six-speed torque-converter gearbox, which is still pretty fuel-efficient compared to other petrol-AT drivetrains.
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Hence, Tata might want to equip the baseline Sierra trim with a six-speed manual transmission to achieve competitive fuel economy. The inclusion of a NA petrol engine could help the Indian automaker control the cost of the Sierra’s base trims, which are often the best-selling models in India.
On the other hand, the Sierra could also feature a 2.0-liter four-cylinder turbocharged diesel engine that produces up to 170PS and 350Nm of torque. This particular engine could be mated to a six-speed manual and a six-speed torque-converter unit on the Sierra (similar to the Harrier).
Tata Sierra Exterior & Interior Design Revealed
Meanwhile, Tata Motors has revealed the Sierra in all its glory. The production-spec version of the mid-sized SUV features an upright front stance, connected LED DRLs and signature headlights, a blacked-out central grille, and minimal silver cladding along the bottom. On the front and sides, the vehicle doesn’t feature aggressive character lines.
The side profile is dominated by the new alloy-wheel design, flush-door handles, chunky black cladding along the bottom, and the iconic wraparound rear glass element. The rear profile of the vehicle is relatively simple, with a connected LED setup, black cladding at the bottom, and a straight-cut finish when viewed from the side.
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On the inside, the vehicle features the new four-spoke steering wheel also seen on the new-generation Harrier. This triple-screen setup includes a driver information cluster, a central infotainment screen, and a left-side screen for the co-passenger. The central console is minimal, with plenty of physical touch buttons and sleek air conditioner vents.
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