Tata Sierra Smart Plus L Diesel

The Smart Plus L Diesel sits above the regular Smart Plus diesel with a few practical additions, including gear shift indicator display and front and rear power windows, while keeping the 1.5L turbo-diesel manual setup and 21.26 kmpl ARAI figure. It is a sensible pick for buyers who want the Sierra diesel experience with a little extra everyday convenience without moving far up the price ladder.

The Smart Plus L Diesel uses Tata’s 1.5-litre turbo-diesel engine with 1497 cc, 116 bhp and 260 Nm, paired only with a 6-speed manual, so it suits buyers who prefer a torquey, manual SUV for mixed city and highway use. With a 50-litre tank and a claimed 21.26 kmpl, it also stands out as the more long-distance-friendly choice in the variant line-up.

For 2026, the Sierra range is listed with the Smart Plus L Diesel at an ex-showroom price of Rs 13.49 lakh, placing it between the regular Smart Plus diesel and the better-equipped upper variants. It is a value-focused trim for buyers who want the diesel engine, manual gearbox and the extra usability features of the L package, but do not need the higher-end comfort and tech upgrades.

The Tata Sierra Smart Plus L Diesel is the better pick if you want the diesel engine, a manual gearbox and a higher equipment step than the regular Smart Plus, but it still makes sense only if you value those extra convenience features enough to justify the jump in price. With a 1.5-litre diesel, 6-speed manual and a claimed 21.26 kmpl, it suits buyers who want stronger highway efficiency and lower running costs than the petrol option.

The Smart Plus L Diesel sits above the regular Smart Plus Diesel and, in current listings, adds a gear shift indicator display plus front and rear power windows, while keeping the 1.5-litre diesel manual setup. Its ex-showroom price is listed at ₹13.49 lakh, with the diesel manual returning an ARAI-rated 21.26 kmpl.

The Tata Sierra Smart Plus L Diesel sits in the mid-spec diesel manual slot, with a recent ex-showroom price of ₹13.49 lakh and a recent on-road price in Delhi around ₹16.07 lakh, making it the value step-up over the Smart Plus Diesel for buyers who want a bit more equipment without jumping to pricier trims.

The Tata Sierra Smart Plus L Diesel is currently listed with a claimed 21.26 kmpl for the manual diesel setup, while broader Sierra diesel figures on the market run from about 19.22 kmpl to 21.26 kmpl depending on transmission and variant tuning. For a buying decision, that means this variant is positioned as the efficiency-focused diesel choice in the range.

The Tata Sierra Smart Plus L Diesel is the diesel manual variant to watch if mileage is a priority, because its claimed 21.26 kmpl sits at the top of the Sierra diesel lineup and is paired with a 50-litre tank for strong touring range. Real-world usage will typically be lower than the claim, so buyers should treat the ARAI figure as the benchmark rather than an everyday result.

For recent market context, the Sierra diesel lineup’s mileage spread is now being shown as 19.22 kmpl for the diesel automatic and 21.26 kmpl for the diesel manual, which makes the Smart Plus L Diesel the more fuel-efficient choice over the automatic. If the purchase is mainly about lower running costs on long highway drives, this is the diesel trim that best supports that goal.