Maruti Suzuki has long been the champion of affordable and fuel-efficient mobility in India, and their commitment to CNG technology continues to empower eco-conscious buyers. Two strong contenders from their lineup, the Grand Vitara and the XL6, now offer CNG variants, bringing the benefits of compressed natural gas to different segments of the market. But if you’re eyeing an entry-level CNG trim, which of these Maruti marvels truly aligns with your needs? Let’s dive into a unique comparison of the Maruti Grand Vitara Sigma CNG and the Maruti XL6 Zeta CNG.

Both vehicles share Maruti’s dependable 1.5-litre K15C DualJet engine, perfectly tuned for CNG. However, their fundamental design and target audiences couldn’t be more distinct. The Grand Vitara embodies the rugged appeal of an SUV, promising a commanding presence, while the XL6 offers a refined MPV experience, prioritizing spaciousness and family comfort.

Price Point: Your Budget’s Deciding Factor

The initial investment often dictates the choice. The Maruti Grand Vitara Sigma CNG (the sole CNG variant for the Grand Vitara) generally comes with a higher price tag than the XL6 Zeta CNG. As of June 2025, expect the Grand Vitara Sigma CNG to be around ₹13.48 Lakh (ex-showroom), while the XL6 Zeta CNG hovers around ₹12.66 Lakh. That’s a difference of roughly ₹82,000 – a significant sum for budget-conscious buyers.

Size and Seating: SUV Swagger vs. MPV Practicality

Here’s where the core distinction truly shines.

* Maruti Grand Vitara Sigma CNG: As an SUV, it offers a 5-seater configuration. Measuring 4345 mm long, 1795 mm wide, and 1645 mm high, with a 2600 mm wheelbase, it presents a sturdy stance. While its petrol variant boasts a generous 373-litre boot, the CNG tank will naturally reduce this. Crucially, its 210 mm ground clearance makes it a more confident companion on varied Indian roads.

* Maruti XL6 Zeta CNG: This is a dedicated 6-seater MPV, featuring comfortable captain seats in the second row. It’s longer (4445 mm), slightly narrower (1775 mm), and taller (1755 mm) than the Grand Vitara, with a longer 2740 mm wheelbase. This translates to superior cabin space, particularly for the second and third rows. However, with all three rows in use, the boot space shrinks to a mere 209 litres, though it expands considerably when the third row is folded. Its 180 mm ground clearance is ample for an MPV but less than the Grand Vitara’s.

Powertrain and Performance: A Shared Heart, Different Driving Experiences

Both vehicles share the same 1.5-litre K15C DualJet engine, delivering 87 bhp and 121.5 Nm of torque when running on CNG. Power is sent to the front wheels via a 5-speed manual gearbox. Neither is built for blistering acceleration; instead, they prioritize fuel efficiency. The Grand Vitara CNG boasts a slightly higher claimed efficiency of 26.6 km/kg, compared to the XL6 CNG’s 26.32 km/kg. Real-world figures, of course, will vary with driving habits and road conditions.

Features: What You Get for Your Rupee

Given these are entry-level CNG variants, both offer a respectable array of features. However, the XL6 Zeta CNG, being a slightly higher trim within its own lineup, does hold an edge over the Grand Vitara Sigma CNG.

Maruti Grand Vitara Sigma CNG (Key Features):

* Dual front airbags

* ABS with EBD

* Brake Assist

* Reverse parking sensors

* Keyless entry with push-button start/stop

* Automatic climate control

* Halogen projector headlights with LED DRLs

* A 7-inch touchscreen infotainment system with SmartPlay Pro (do confirm exact features for the base CNG variant at the dealership).

Maruti XL6 Zeta CNG (Notable Advantages Over Grand Vitara Sigma CNG):

* Enhanced Safety: The XL6 Zeta comes with 4 airbags (dual front + front side airbags), offering an extra layer of protection.

* Superior Illumination: It features LED projector headlights and LED fog lamps for better visibility and a more premium look.

* Convenience: Enjoy the ease of cruise control, a feature absent in the Grand Vitara Sigma.

* Practicality: It includes a rear wiper and washer, essential for clear rear visibility in inclement weather.

* Passenger Comfort: Rear AC vents ensure comfort for occupants in the second and third rows.

* Style: The XL6 Zeta comes with alloy wheels, whereas the Grand Vitara Sigma typically has steel wheels.

The Verdict: Which Maruti CNG Is Your Match?

The choice between the Grand Vitara Sigma CNG and the XL6 Zeta CNG ultimately hinges on your lifestyle and priorities.

Opt for the Maruti Grand Vitara Sigma CNG if:

* You crave the bold styling, higher ground clearance, and robust presence of an SUV.

* A 5-seater configuration perfectly suits your family or individual needs.

* You appreciate slightly better fuel efficiency and the Grand Vitara’s more premium segment positioning.

* You’re comfortable with a slightly higher upfront investment for the SUV experience.

Lean towards the Maruti XL6 Zeta CNG if:

* You need a comfortable 6-seater family vehicle with the luxury of captain seats.

* Maximized cabin space and passenger comfort, especially for rear occupants, are your top concerns.

* You value the added convenience features like LED lighting, cruise control, and extra airbags (compared to the Grand Vitara Sigma).

* The slightly more accessible price point aligns better with your budget.

* You prefer the refined experience of an MPV and don’t necessarily require the heightened ground clearance of an SUV.

Both the Maruti Grand Vitara Sigma CNG and the Maruti XL6 Zeta CNG offer excellent value, blending Maruti’s legendary reliability with the cost-effectiveness of CNG. It’s a classic choice between the allure of an SUV and the practicality of an MPV, both powered by the same efficient, eco-friendly engine. Which one will be parking in your driveway?