Toyota Glanza CNG

CNG mileage and running cost

The Toyota Glanza CNG carries an ARAI-certified mileage of 30.61 km/kg, making it one of the most fuel-efficient hatchbacks in its class. At a typical CNG pump price of around ₹90/kg in Delhi, that translates to a running cost of roughly ₹2.94 per kilometre — compared to approximately ₹7–8 per km for the petrol variant at current fuel prices. Over 1,500 km a month, a Glanza CNG owner can save upwards of ₹6,000–7,000 monthly versus the petrol version.

Autocar India's independent real-world test returned approximately 22.07 km/kg in combined city and highway driving — a realistic figure that still represents excellent economy. The gap between the ARAI figure and real-world performance is narrower than many rivals, partly because the K-Series engine is well-matched to CNG combustion characteristics. The bi-fuel setup means you can switch to petrol when CNG stations are unavailable, giving the Glanza CNG a practical range advantage over single-fuel CNG cars.

The Glanza S CNG at ₹8.49 lakh costs ₹86,000 more than the petrol S MT (₹7.63 lakh). At real-world savings of roughly ₹6,500/month, the premium pays back in approximately 13 months for a 1,500 km/month commuter — a strong financial case for city-heavy buyers.

CNG kit, tank, and boot space

The Glanza's E-CNG system is factory-fitted by Toyota on the production line — not a dealer-installed aftermarket kit. This is a critical distinction: the full manufacturer warranty of 3 years/1,00,000 km (extendable to 5 years/2,20,000 km) applies without any caveats. The CNG cylinder holds 55 litres (water equivalent), which is a competitive tank size for the segment and provides a usable CNG range of roughly 400–450 km under real-world conditions before switching to petrol.

The petrol tank retains its full 37-litre capacity, so the Glanza CNG is a genuine bi-fuel car with a combined theoretical range exceeding 800 km. The CNG cylinder is mounted in the boot, and research sources cite the boot space at 318 litres — though this figure is for the petrol variant; the CNG cylinder occupies a portion of the boot floor, reducing usable luggage space. Toyota does not officially state the CNG boot figure in litres, so buyers should inspect the boot in person before purchase.

The kerb weight of the E-CNG variants rises to 1,015–1,035 kg (MT), up from 920–955 kg for the petrol MT, reflecting the weight of the cylinder and associated hardware. The gross vehicle weight is rated at 1,450 kg.

Performance on CNG

On CNG, the Glanza's 1,197 cc engine produces 57 kW (approx. 76 bhp) and 98.5 Nm of torque — down from 66 kW and 113 Nm on petrol. The power drop is noticeable but not debilitating in urban traffic; the engine feels adequately brisk up to 80 km/h. Highway overtaking requires more planning, and the 5-speed manual gearbox (the only option on CNG variants) demands more gear changes on inclines compared to the petrol AMT.

Idle start/stop is not available on E-CNG variants — a trade-off Toyota makes to ensure reliable CNG combustion management. The engine starts on petrol and switches to CNG automatically once the engine warms up, a seamless process that most drivers will barely notice. Throttle response on CNG is slightly softer than petrol, which actually suits relaxed city driving.

The suspension setup — MacPherson struts up front and a torsion beam at the rear — is shared with the petrol Glanza and handles the additional weight of the CNG cylinder without significant compromise to ride quality. Braking is handled by front discs and rear drums with ABS, EBD, and Brake Assist as standard.

Cabin, space, and tech

The Glanza's cabin punches above its price point. The S CNG gets a touchscreen infotainment system with Android Auto and Apple CarPlay, steering-mounted audio controls, electrically adjustable and foldable ORVMs, remote keyless entry, auto AC with rear vents, and all four power windows. The G CNG steps up with LED projector headlamps, a head-up display (HUD), push-button start, cruise control, a rear parking camera, 16-inch alloy wheels, tilt-and-telescopic steering, and Toyota i-Connect with 45+ connected features including geo-fence, valet profile, auto collision notification, and smartwatch connectivity.

The G variant's infotainment screen is 17.78 cm (7-inch), while the top petrol V gets the larger 22.86 cm (9-inch) Smart Playcast unit — the CNG range tops out at G, so the largest screen is not available with CNG. Rear passenger space is generous for a sub-4-metre hatchback, with the 2,520 mm wheelbase providing adequate knee room for two adults. The 60:40 split rear seats add practicality when the boot is compromised by the CNG cylinder.

Safety and ADAS

The Toyota Glanza CNG comes with 6 airbags as standard across all variants — front, front side, and curtain airbags — which is a genuine segment highlight at this price. Vehicle Stability Control (ESP), ABS with EBD, Brake Assist, and Hill Hold Control are also standard. The body uses Toyota's TECT (Toyota Emergency Call Technology) energy-absorbing structure, front seat belt pre-tensioners with force limiters, rear 3-point seat belts, ISOFIX anchorage, child-proof rear door locks, and a high-speed alert above 80 km/h.

The Glanza has not been independently tested by Bharat NCAP or Global NCAP as of September 2026. However, its platform sibling, the Maruti Suzuki Baleno, achieved a 4-star Bharat NCAP rating for adult occupant protection and a 3-star rating for child occupant protection — a useful proxy for the Glanza's structural safety credentials.

The Glanza does not offer autonomous emergency braking or lane-keep assist; its safety suite is passive and stability-focused rather than ADAS-equipped. For buyers prioritising active safety tech, this is a notable gap versus some rivals.

CNG variants and pricing

The Glanza E-CNG is offered in exactly two variants. The Glanza S CNG at ₹8.49 lakh (ex-showroom) is the entry point, featuring a 7-inch touchscreen, Android Auto/Apple CarPlay, auto AC, rear AC vents, remote keyless entry, electrically adjustable ORVMs, and 6 airbags. The Glanza G CNG at ₹9.53 lakh adds LED projector headlamps, HUD, push-button start, cruise control, 16-inch alloys, height-adjustable driver's seat, rear parking camera, tilt-and-telescopic steering, and Toyota i-Connect connectivity.

Notably, the top petrol V variant (₹9.48 lakh MT, ₹9.99 lakh AMT) is not available with CNG, and neither is the AMT gearbox on any CNG variant. Buyers who want the 9-inch Smart Playcast screen, 360-degree surround view camera, Arkamys premium audio, or an automatic gearbox must choose the petrol powertrain.

How it compares

The Glanza CNG's closest rival is the Maruti Suzuki Baleno CNG, which shares the same platform and engine but is priced slightly lower (Baleno CNG starts around ₹8.28 lakh). The Baleno CNG offers a higher ARAI mileage of 33.61 km/kg versus the Glanza's 30.61 km/kg — a meaningful difference for high-mileage users. However, the Glanza counters with Toyota's stronger resale value reputation, a wider service network in some regions, and the i-Connect connected car suite.

The Tata Altroz CNG is another direct competitor, offering twin-cylinder CNG tanks that preserve more boot space, though its mileage figure is lower. The Hyundai Grand i10 Nios CNG and Hyundai Aura CNG are smaller and cheaper but lack the Glanza's feature depth. Against the Toyota Taisor CNG (a crossover sibling), the Glanza CNG is more affordable and more fuel-efficient, though the Taisor offers higher ground clearance and a more SUV-like stance.

Who should buy it

The Toyota Glanza CNG is best suited to urban and semi-urban commuters who cover 1,200–2,000 km per month and want factory-grade CNG reliability without sacrificing features or resale value. The G CNG at ₹9.53 lakh is the sweet spot — it adds HUD, LED headlamps, push-button start, and connected car tech over the S, making it feel genuinely premium for its price.

Buyers who need an automatic gearbox, the largest infotainment screen, or maximum boot space should look at the petrol Glanza V AMT or consider the Tata Altroz CNG's twin-cylinder layout. But for sheer running-cost efficiency, factory warranty peace of mind, and Toyota's after-sales network, the Glanza CNG is a hard car to argue against in the sub-₹10 lakh hatchback space.