Kia Carens CNG vs Maruti Ertiga CNG: Dual-Cylinder Boot Space Fact-Check | CarSide
Kia Carens CNG vs Maruti Ertiga CNG: Dual-Cylinder Boot Space Fact-Check
With Kia officially launching the factory-fitted Carens CNG, India’s bestselling 7-seater MPV—the Maruti Suzuki Ertiga S-CNG—faces its most serious competition to date. To help prospective buyers navigate marketing claims, we fact-check boot capacity, real fuel economy, passenger safety, and ownership costs between the two rivals.
Fact-Check 1: Boot Space & Luggage Utility
- The Maruti Ertiga S-CNG Reality: Relies on a single, bulky 60-litre steel gas cylinder positioned directly in the rear luggage bay behind the third-row seats. This setup eliminates almost all vertical and horizontal trunk space, preventing families from carrying standard suitcases.
- The Kia Carens CNG Innovation: Employs twin compact cylinders mounted beneath the luggage floor. The boot floor remains completely flat and functional, accommodating soft bags, cabin trolleys, and airport luggage with all three seating rows upright.
- Verdict: Kia Carens wins conclusively on luggage practicality.
Fact-Check 2: Powertrain & Fuel Economy Numbers
- Maruti Ertiga CNG: Powered by the 1.5-litre K15C DualJet engine producing 88 PS and 121.5 Nm in CNG mode. ARAI certified at 26.11 km/kg.
- Kia Carens CNG: Powered by a 1.5-litre Smartstream petrol engine delivering 95 PS and 130 Nm in CNG mode. ARAI certified at 27.20 km/kg.
- Verdict: The Carens offers slightly higher peak power and marginally better certified fuel efficiency.
Fact-Check 3: Standard Safety Hardware
- Maruti Ertiga: Features dual front airbags on lower CNG trims (VXi) and 4 airbags on top trims. Rear parking sensors and ABS with EBD are standard.
- Kia Carens: Standardizes 6 airbags, all-wheel disc brakes, Electronic Stability Control (ESC), and Tyre Pressure Monitoring System (TPMS) across every single trim from base to top.
Ertiga CNG vs Carens CNG Comparison Matrix
| Specification | Maruti Suzuki Ertiga S-CNG | Kia Carens S-CNG |
|---|---|---|
| Starting Price (Ex-Showroom) | ₹10.78 Lakh | ₹11.75 Lakh |
| CNG Tank Design | Single Large Trunk Cylinder | Twin Underfloor Cylinders |
| Usable Boot Space | Minimal (~55 Litres) | Functional (~190 Litres Flat Floor) |
| Certified Fuel Economy | 26.11 km/kg | 27.20 km/kg |
| Standard Airbags | 2 Airbags on VXi | 6 Airbags on All Trims |
| Braking Setup | Front Disc / Rear Drum | All-4 Wheel Disc Brakes |
Frequently Asked Questions
Does the Kia Carens CNG have more luggage space than the Maruti Ertiga CNG?
Yes, the Kia Carens CNG uses two compact underfloor cylinders, leaving usable flat boot space for luggage, unlike the Ertiga’s single cylinder which occupies the trunk.
What is the claimed mileage of the Kia Carens CNG?
The Kia Carens 1.5L CNG delivers an ARAI-certified fuel economy of 27.20 km/kg, compared to 26.11 km/kg for the Maruti Ertiga CNG.
What is the starting price difference between Carens CNG and Ertiga CNG?
The Maruti Ertiga VXi CNG starts at ₹10.78 lakh, while the Kia Carens CNG Premium starts slightly higher at ₹11.75 lakh (ex-showroom).
The CarSide Verdict
The Maruti Ertiga remains roughly ₹97,000 cheaper at entry, but the Kia Carens CNG justifies its premium by solving the Ertiga’s fatal flaw: zero luggage space. With standard 6 airbags, all-wheel discs, and genuine family boot utility, the Carens CNG is the superior family tourer.
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