Tata Nexon iCNG vs Maruti Brezza S-CNG vs Mahindra XUV 3XO ZNG: Which CNG SUV Should You Buy in 2026?
The launch of the Mahindra XUV 3XO ZNG on 15 October 2026 has intensified competition in India's compact CNG SUV segment. Starting at ₹9.99 lakh (ex-showroom), the new Mahindra challenges two established rivals: the Tata Nexon iCNG and the Maruti Suzuki Brezza S-CNG.
All three promise lower running costs without sacrificing the appeal of an SUV, but their strengths differ considerably.
Nexon iCNG Brezza S-CNG XUV 3XO ZNG
Nexon iCNG Brezza S-CNG XUV 3XO ZNG
Fuel efficiency Turbo performance Features and performance
1. Specifications comparison
Parameter | Tata Nexon iCNG | Maruti Brezza S-CNG | Mahindra XUV 3XO ZNG |
Starting price (ex-showroom) | ₹8.30 lakh | ₹9.30 lakh | ₹9.99 lakh |
Engine | 1.2L turbo | 1.5L naturally aspirated | 1.2L turbo |
Cylinders | 3 | 4 | 3 |
Maximum power* | 100 hp | ~88 PS | 110 bhp |
Maximum torque* | 170 Nm | 121.5 Nm | 200 Nm |
Transmission | 6-speed MT | 6-speed MT | Manual |
Claimed CNG mileage | 24 km/kg | 26.90 km/kg | 24.70 km/kg |
CNG tank arrangement | Twin cylinders | Underbody | Twin cylinders |
Seating capacity | 5 | 5 | 5 |
2. Fuel efficiency: Brezza has the advantage
Claimed CNG mileage: km per kg; higher is better
Model | Mileage |
Brezza | 26.9 |
XUV 3XO | 24.7 |
Nexon | 24 |
The Brezza leads on certified mileage, making it especially attractive for frequent city users, daily commuters and high-mileage buyers.
The Nexon and XUV 3XO offer turbocharged powertrains, which may appeal to buyers seeking stronger acceleration, particularly with passengers and luggage.
These are laboratory-certified mileage figures; real-world efficiency will depend on traffic, load, driving style and road conditions.
3. Boot space and practicality
The CNG cylinder arrangement can make a substantial difference to family usability.
Car Model | Boot Capacity | Cylinder Technology | Spare Wheel |
Maruti Brezza CNG | 328 L | Underbody-mounted tank | No spare wheel (tyre repair kit only) |
Tata Nexon iCNG | 321 L | Twin-cylinder setup (30L + 30L) | Underbody-mounted |
Mahindra XUV 3XO CNG | 270 L | Twin-cylinder setup (30L + 30L) | Underbody-mounted |
4. Features and safety
Feature | Nexon iCNG | Brezza S-CNG | XUV 3XO ZNG |
Panoramic sunroof | Available | No | Available |
Large touchscreen | Available | Available | 10.25-inch available |
360° camera | Available | Available | Available |
Six airbags | Yes | Yes | Yes |
Bharat NCAP | 5 stars, Nexon | 5 stars, updated Brezza | 5 stars, XUV 3XO |
Rear disc brakes | No | No | Yes |
Features depend on the selected variant; five-star ratings refer to the tested models and applicable safety-rating scope, not necessarily separate CNG crash tests.
5. Variant-Wise Price Comparison – October 2026
All prices ex-showroom, in ₹ lakh. Rounded for readability.
Variant Tier | Mahindra XUV 3XO ZNG | Tata Nexon iCNG | Maruti Brezza S-CNG |
Base / Entry | ₹9.99 – MX Edge | ₹8.30 – Smart | ₹9.35 – LXi |
Mid-Low | ₹10.79 – REVX Edge (O) | ₹9.27 – Smart+; ₹9.57 – Smart+ S | ₹9.99 – VXi |
Mid / Mainstream | ₹11.19 – AX5 | ₹10.00 – Pure+; ₹10.62 – Pure+ PS | ₹11.50 – ZXi |
Mid-High | — | ₹11.22 – Creative; ₹11.52 – Creative+ S; ₹12.47 – Creative+ PS | ₹11.66 – ZXi Dual Tone |
Top / Premium | ₹12.27 – REVX A | ₹13.42 – Fearless+ PS | — |
Auto Punditz Take: Which CNG SUV Offers the Best Value?
The Tata Nexon iCNG, Maruti Suzuki Brezza S-CNG and Mahindra XUV 3XO ZNG offer three distinct approaches to affordable CNG motoring. While all three focus on reducing running costs, differences in pricing, engine performance, boot space, features and practicality make each suitable for a different buyer.
Tata Nexon iCNG – Best for Value and Turbo-CNG Performance
With a starting price of ₹8.30 lakh, the Nexon iCNG is the most affordable of the three. Its 1.2-litre turbocharged CNG engine, 321-litre boot and extensive variant selection make it a well-rounded option. It is particularly appealing to buyers seeking a balance of performance, safety, features and affordability without stretching their budget.
Maruti Suzuki Brezza S-CNG – Best for Fuel Efficiency and Family Practicality
The updated Brezza S-CNG stands out with its claimed mileage of 26.90 km/kg, six-speed manual transmission and underbody-mounted CNG tank. Its 328-litre luggage capacity gives it a slight advantage over the Nexon and a more substantial lead over the Mahindra. Maruti Suzuki's extensive service network further strengthens its appeal for long-term ownership. However, the absence of a spare wheel is an important consideration for frequent highway travellers.
Mahindra XUV 3XO ZNG – Best for Buyers Prioritising Features
Starting at ₹9.99 lakh, the XUV 3XO ZNG enters the segment as a technology-focused alternative. Its turbocharged engine, modern equipment and safety features are attractive, particularly for buyers looking beyond basic CNG affordability. However, its 270-litre boot is the smallest of the three, and the relatively higher starting price makes it less accessible to budget-conscious buyers.
Auto Punditz Verdict
For most family buyers, the Maruti Suzuki Brezza S-CNG emerges as our preferred practical choice, particularly for its fuel efficiency, luggage space and established ownership ecosystem.
However, the Tata Nexon iCNG arguably delivers the strongest overall value proposition, combining the lowest entry price with turbocharged performance and a practical twin-cylinder arrangement.
The Mahindra XUV 3XO ZNG is a compelling alternative for buyers who prioritise technology, equipment and driving experience over maximum luggage space and the lowest purchase price.
Ultimately, the Brezza wins on efficiency and practicality, the Nexon on affordability and value, and the XUV 3XO on its feature-focused positioning. Buyers should compare similarly priced variants and take a test drive before making their decision.
Editorial note: This assessment is based on published specifications, prices and claimed fuel-efficiency figures. Real-world CNG performance, fuel economy and long-term ownership costs may change the ranking.
