Tata Sierra 2025– car dimensions: 4340 mm long, 1841 mm wide and 1715 mm high. Boot space with the seats up is 622 litres.
Base Smart+ has manual AC, rear vents, rear sensors and a small digital cluster but no touchscreen. Pure adds a 10.25-inch touchscreen with wireless Android Auto and Apple CarPlay plus cruise control and a rear camera. Pure+ brings dual-zone auto climate. Adventure adds front sensors, 360-degree camera and blind-spot monitor. Top Accomplished and Accomplished+ get Level 2 or 2+ ADAS with AEB, lane keep, adaptive cruise, bigger screens up to triple 12.3-inch setup, ventilated powered seats and JBL audio. Cabin feels roomy with good rear legroom and modern screens on higher trims for daily drives.
Boot holds 622 litres with seats up, expanding to 1257 litres when the 60:40 rear seats fold flat. Wide, deep load bay with hooks and a 12V socket suits family luggage or bulky items easily. Split tailgate helps access.
The cabin feels spacious and airy with soft-touch materials, ambient lighting and a lounge-like setup. Higher grades add ventilated front seats, a 6-way powered driver seat with memory, extendable under-thigh support, dual-zone climate control with rear vents and express cooling, plus a large voice-controlled panoramic sunroof. Rear seats offer two-stage recline, boss mode and good legroom for three adults. Triple screens and a 12-speaker JBL system with Dolby Atmos complete the premium feel.
Engines: 1.5L NA petrol (106 PS), 1.5L turbo petrol (160 PS), 1.5L diesel (118 PS).
Fuel tank capacity 50 litres.
Standard warranty 3 years or 100,000 km.
6 airbags, ESP, all-wheel disc brakes, ISOFIX and hill-hold assist standard.
Level 2+ ADAS with up to 22 functions on top grades.
The Sierra runs on three 1.5-litre engines: a naturally aspirated petrol, a turbo GDI petrol and a Kryojet diesel. Transmissions include 6-speed manual, 7-speed DCT and 6-speed torque-converter automatic depending on the engine. Claimed mileage figures vary by powertrain, with diesel options returning higher numbers than the petrols.
Servicing follows Tata’s usual pattern with a 3-year/100,000 km standard warranty that can be extended. Exact service intervals and costs are not detailed in public specs yet, but free early services and genuine parts are the norm at authorised centres.
Safety kit is strong from the base: six airbags, electronic stability program with multiple functions, all-wheel discs, ISOFIX anchors, electronic parking brake and rear parking sensors. Higher grades add 360-degree camera, TPMS, hill descent and a full Level 2+ ADAS suite covering AEB, adaptive cruise, lane keep and blind-spot detection. The car is built on the rigid ARGOS platform and is prepared for a 5-star Bharat NCAP rating, though official results are pending. an internal offset crash demo showed stable structure and operable doors.
Day-to-day ownership benefits from the large 622-litre boot (expandable when seats fold), 205 mm ground clearance, terrain modes and connected-car features for remote checks. Regular maintenance keeps the new powertrains reliable.
Length 4340 mm, Width 1841 mm, Height 1715 mm, Wheelbase 2730 mm (Sierra 2025-present)
Sources: manufacturer data, Tata Motors official, CarDekho specifications.