The Kia Sonet and Nissan Magnite are both subcompact SUVs available at comparable prices in the Indian market, and it’s a tough call as to which SUV provides better mileage. The Kia Sonet offers more engine options: a 1.2-litre naturally aspirated petrol, a 1.0-litre turbo-petrol, and a 1.5-litre diesel, while the Nissan Magnite offers only a 1.0-litre naturally aspirated petrol and a 1.0-litre turbo-petrol engine. The Sonet diesel manual version delivers 24.1 km/l, while the Magnite petrol versions offer 19.9 km/l. Hence, the question arises as to how the two compare in terms of real fuel economy.
The Sonet launched in India in 2020 and received a major facelift in 2024. The Magnite also launched in 2020 and was facelifted in 2024. The Magnite has the advantage of lower weight and a lower entry price, while the Sonet counters with more powertrain choice and a highly efficient diesel.
Kia Sonet vs Nissan Magnite Specs
The Kia Sonet offers three engine variants. The 1.2-litre naturally aspirated petrol motor generates a power of around 88hp along with a peak torque of 115Nm. In contrast, the 1.0-litre turbo-petrol engine produces a power of 120hp and 172Nm. A 5-speed manual transmission is available with the 1.2-litre engine while the 1.0-litre engine may be chosen with an iMT or with a 7-speed automatic gearbox. Finally, the diesel engine produces 116hp along with the peak torque of 250Nm.
The Magnite uses smaller 999cc engines. Its naturally aspirated petrol makes 72PS and 96Nm, while the turbo version produces 100PS and up to 160Nm with the manual gearbox. The NA engine is offered with a 5-speed manual or AMT, and the turbo comes with a 5-speed manual or CVT. The Magnite is also lighter, with top versions around 1.1 tonnes, which helps reduce fuel use during acceleration. The Sonet counters with a larger 45-litre tank compared with the Magnite’s 40 litres.
| Specification | Kia Sonet | Nissan Magnite |
| Engine | 1.2L NA petrol / 1.0L turbo-petrol / 1.5L diesel | 1.0L NA petrol / 1.0L turbo-petrol |
| Displacement | 1,197cc / 998cc / 1,493cc | 999cc |
| Power | 88hp / 120hp / 116hp | 72PS NA / 100PS turbo |
| Torque | 115Nm / 172Nm / 250Nm | 96Nm NA / 160Nm turbo MT / 152Nm CVT |
| Transmission | 5MT / 6iMT / 7DCT / 6MT / 6AT | 5MT / 5AMT / CVT |
| Drive layout | FWD | FWD |
| Kerb weight | Variant dependent | Approx. 1,019–1,103kg |
| Fuel tank capacity | 45 litres | 40 litres |
Kia Sonet vs Nissan Magnite ARAI Mileage Figures
The 1.2-litre engine is said to deliver fuel efficiency of around 18.8 km/l, along with the 1.0-litre turbo engine producing a little less fuel efficiency at 18.7 km/l. The diesel engine is however the most efficient of the three as it produces 24.1 km/l according to reports while the diesel engine with automatic transmission is less efficient at 18.6 km/l gives.
The Magnite is strong on petrol efficiency. The naturally aspirated manual claims 19.4 km/l, the AMT 19.7 km/l, and the turbo manual up to 19.9 km/l. The Turbo CVT is rated lower at around 17.9 km/l. This gives the Magnite an advantage over the Sonet 1.2 petrol on claimed economy, although the Sonet diesel remains comfortably ahead of every petrol option.
| Car | Engine & Transmission | Fuel Type | ARAI Mileage |
| Kia Sonet | 1.2L petrol, 5MT | Petrol | 18.8 km/l |
| Kia Sonet | 1.0L turbo-petrol, 7DCT | Petrol | 18.7 km/l |
| Kia Sonet | 1.5L diesel, 6MT | Diesel | 24.1 km/l |
| Kia Sonet | 1.5L diesel, 6AT | Diesel | 18.6 km/l |
| Nissan Magnite | 1.0L NA petrol, 5MT | Petrol | 19.4 km/l |
| Nissan Magnite | 1.0L NA petrol, AMT | Petrol | 19.7 km/l |
| Nissan Magnite | 1.0L turbo-petrol, 5MT | Petrol | 19.9 km/l |
| Nissan Magnite | 1.0L turbo-petrol, CVT | Petrol | 17.9 km/l |
Also Read: Complete Guide to Buying a Kia Sonet
Kia Sonet vs Nissan Magnite Real-World Fuel Efficiency
In the case of the naturally aspirated engine, the user reports for fuel efficiency indicate that the 1.2-litre engine has a mileage of around 16.18 km/l, while the Nissan output shows a slightly higher mileage of 17.53 km/l, thus establishing the Magnite as the better vehicle. Nonetheless, given the larger 45-litre tank size, the Kia Sonet has an overall range of around 728km compared to just 701 km for the Nissan variant.
The turbo-automatic comparison goes the other way. The Sonet Turbo DCT has returned around 11.6 km/l in the city and 16.5 km/l on highways, giving a simple average close to 14.05 km/l. The Magnite Turbo CVT has returned around 9.5 km/l in the city and 15.22 km/l on highways, averaging roughly 12.36 km/l. The Sonet therefore delivers the strongest-tested automatic mileage despite producing more power. Its diesel is stronger still: the diesel manual has returned around 15.4 km/l in the city and 20.8 km/l on highways, making it the most efficient option in this comparison. For frequent highway users, that diesel advantage matters even more because the engine can lean on its strong low-end torque at cruising speeds instead of needing frequent high-rev acceleration.
| Sonet 1.2 MT | Magnite NA MT | Sonet Turbo DCT | Magnite Turbo CVT | |
| City | Varies | Varies | 11.6 km/l | 9.5 km/l |
| Highway | Varies | Varies | 16.5 km/l | 15.22 km/l |
| Average | ~16.18 km/l | ~17.53 km/l | ~14.05 km/l | ~12.36 km/l |
| Tank range | ~728 km | ~701 km | ~632 km | ~494 km |
Another strong option is the Magnite turbo MT, as it gives a fuel efficiency rating of 12.8 km/l in cities and 16.1 km/l on highway,s giving an averaged estimate of approximately 14.45 km/l. This vehicle thus becomes the ideal choice for buyers looking for turbo-petrol performance without the higher urban fuel cost of a vehicle fitted with a CVT.
Kia Sonet vs Nissan Magnite Fuel Cost Comparison
For this comparison, we have assumed 1,500 km of driving every month, equal to 18,000 km annually. Fuel prices are based on New Delhi rates on September 10, 2026, at approximately ₹102.12 per litre for petrol and ₹95.20 per litre for diesel. The calculation uses real-world combined mileage rather than ARAI figures, so it gives a more useful picture of ownership costs.
Petrol Fuel Cost
| Sonet 1.2 MT | Magnite NA MT | Sonet Turbo DCT | Magnite Turbo CVT | |
| Monthly Running | 1,500 km | 1,500 km | 1,500 km | 1,500 km |
| Monthly Fuel Use | 92.7 litres | 85.6 litres | 106.8 litres | 121.4 litres |
| Average Monthly Fuel Cost | ₹9,467 | ₹8,738 | ₹10,902 | ₹12,393 |
| Average Yearly Fuel Cost | ₹1.14 lakh | ₹1.05 lakh | ₹1.31 lakh | ₹1.49 lakh |
| 5-Year Fuel Cost | ₹5.68 lakh | ₹5.24 lakh | ₹6.54 lakh | ₹7.44 lakh |
The Magnite is expected to save about ₹730 per month when compared to the Sonet 1.2 MT for naturally aspirated versions, which would amount to an estimated ₹8,700 a year. That means, in 5 years, the difference would be nearly ₹44,000. It is an important saving but far from being decisive on its own; the buying price, added value, functionality and repair convenience could be very important factors as well.
Among the turbo automatics, the Sonet DCT flips the result. It could cost around ₹1,490 less per month to fuel than the Magnite Turbo CVT based on these tested averages. That works out to almost ₹18,000 per year and about ₹90,000 over five years.
Sonet Diesel Fuel Cost
Since the Magnite does not offer a diesel version, the Sonet diesel stands out in its own class; employing the diesel’s real-world mileage of 18.1 km/l, that translates to roughly 82.9 litres of fuel consumed in a month. At a cost of ₹95.20 per litre, that turns out to be nearly ₹7,890 in monthly terms, which amounts to around ₹94,700 every year and nearly ₹4.73 lakh over a five-year span.
| Kia Sonet Diesel MT | Kia Sonet Diesel AT | |
| Monthly Running | 1,500 km | 1,500 km |
| Reference Mileage | ~18.1 km/l | ~16.3 km/l |
| Monthly Fuel Use | 82.9 litres | 92.0 litres |
| Average Monthly Fuel Cost | ₹7,890 | ₹8,761 |
| Average Yearly Fuel Cost | ₹94,700 | ₹1.05 lakh |
| 5-Year Fuel Cost | ₹4.73 lakh | ₹5.26 lakh |
If customers record 18,000 km or more in the year, then clearly the diesel Sonet is the best option in terms of running costs. Just comparing diesel with the Magnite Turbo CVT, there is a possibility of around ₹4,500 being saved monthly in terms of fuel expenses; however, the catch here would be a higher buying cost since just fuel savings would take a while to recover.
Also Read: Nissan Cars in India
Kia Sonet vs Nissan Magnite Price
The Magnite has the lower entry price. Its current range starts at about ₹5.68 lakh ex-showroom, while the Sonet begins at roughly ₹7.41 lakh. The difference narrows once turbo and automatic versions are compared, but the Magnite generally remains the less expensive car at equivalent lower and mid-range positions.
The Sonet stretches higher because of its diesel, DCT, automatic and better-equipped top variants.
| Model | Variant | Price (ex-showroom) |
| Kia Sonet | 1.2 HTE MT | ~₹7.41 lakh |
| Kia Sonet | Turbo DCT range | From ~₹9.9 lakh |
| Kia Sonet | Diesel MT range | From around ₹9 lakh |
| Kia Sonet | Top Diesel AT | ~₹14.27 lakh |
| Nissan Magnite | Visia MT | ₹5.68 lakh |
| Nissan Magnite | N-Connecta Turbo MT | ₹8.77 lakh |
| Nissan Magnite | Acenta Turbo CVT | ₹9.26 lakh |
| Nissan Magnite | Tekna+ Turbo CVT | ₹10.99 lakh |
For an entry-level petrol purchaser, the Magnite’s low price and slightly superior practical mileage imply there is no advantage for the Sonet when it comes to fuel costs. However, in the turbo-automatic comparison, the Sonet’s superior practicality would compensate for its higher initial price gradually. This is even more so when diesel comes into play. However, the actual calculations on the breakeven point will depend on the chosen version of the Sonet.
Summary
The Kia Sonet vs Nissan Magnite mileage comparison does not produce one winner across every powertrain. For naturally aspirated petrol manuals, the Nissan Magnite has the advantage. Its current user-reported combined figure of around 17.53 km/l is better than the Sonet 1.2 petrol’s roughly 16.18 km/l, and its lower purchase price strengthens the case for buyers focused on affordable petrol ownership.
The situation is different for turbo automatics. The Kia Sonet Turbo DCT has shown an average of 11.6 km/l in the city and 16.5 km/l on highways, which is better than the Magnite Turbo CVT with 9.5 km/l in the city and 15.22 km/l on highways. The Sonet diesel manual achieves the best efficiency figures of 15.4 km/l in the city and 20.8 km/l on highways in this case, and it also enjoys lower diesel prices.
Overall, choose the Nissan Magnite if you want lower purchase cost and strong naturally aspirated petrol efficiency. Choose the Kia Sonet if you want a more efficient turbo automatic or a diesel option for high annual running.
FAQs
Q. Which has better mileage, Kia Sonet or Nissan Magnite?
It depends on the powertrain. The Magnite naturally aspirated manual has better combined petrol mileage than the Sonet 1.2 manual, while the Sonet Turbo DCT performs better than the Magnite Turbo CVT in tested real-world conditions. The Sonet diesel manual is the most efficient option overall.
Q. What is the real-world mileage of the Kia Sonet petrol?
The Sonet 1.2 petrol manual has a current user-reported combined figure of around 16.18 km/l. The Turbo DCT has returned approximately 11.6 km/l in the city and 16.5 km/l on highways, giving a simple average near 14.05 km/l.
Q. What is the real-world mileage of the Nissan Magnite?
The Magnite Turbo MT has returned around 12.8 km/l in city driving and 16.1 km/l on highways. The Turbo CVT delivers approximately 9.5 km/l in the city and 15.22 km/l on highways, while the NA manual has a user-reported combined figure around 17.53 km/l.
Q. Which automatic gives better mileage, Sonet DCT or Magnite CVT?
The Kia Sonet Turbo DCT has the stronger tested mileage. It returned around 11.6 km/l city and 16.5 km/l highway, compared with approximately 9.5 km/l and 15.22 km/l for the Magnite Turbo CVT.
Q. What is the real-world mileage of the Kia Sonet diesel?
The Sonet diesel manual has returned approximately 15.4 km/l in city conditions and 20.8 km/l on highways. The diesel automatic is also efficient, at roughly 13.8 km/l in the city and 18.8 km/l on the highway.
Q. Which is cheaper to run, Kia Sonet or Nissan Magnite?
For an entry-level petrol manual, the Magnite is cheaper because it combines a lower purchase price with slightly better real-world mileage. For turbo automatics, the Sonet DCT has lower calculated fuel costs. High-mileage buyers can save the most with the Sonet diesel manual.
