6-Seater MPVs With the Lowest Running Cost Per Km in India (2026)

The Maruti Suzuki XL6 CNG is the cheapest genuine 6-seater MPV to run in India, at roughly ₹3.24 per km on its brochure-certified 26.23 km/kg. Behind it come the Hyundai Alcazar diesel manual at about ₹4.41 per km, the XL6 petrol manual at ₹4.78 (20.90 kmpl), the XL6 petrol automatic at ₹4.93 (20.27 kmpl), and the Kia Carens Clavis 6-seat diesel at ₹5.14, which is automatic-only and lands last.

A 6-seater layout, with captain seats in the middle row instead of a bench, is a genuine comfort upgrade over a standard 3-row MPV, and it's increasingly what families cross-shopping this segment actually want. But the field offering it in India is much narrower than the 7-seater space, and that narrower field makes it worth understanding the running cost differences between the handful of real options before committing.

Buyers often assume that stepping up to a 6-seat layout automatically means giving up on running cost, since these configurations tend to sit on pricier trims with bigger engines. That's not universally true, though it's also not as simple as picking whichever nameplate is most familiar. This segment has seen real changes recently that catch buyers off guard if they're comparing older reviews.

This list ranks 6-seater MPVs in India by estimated running cost per kilometer across CNG, petrol, and diesel powertrains. The Maruti figures are the ARAI-certified numbers printed in the XL6's own brochure; the Hyundai and Kia numbers are our own and are flagged as approximate wherever they appear. Buyers cross-shopping the broader MPV segment can also check our breakdown of the most fuel-efficient MPVs in India for 7-seater and CNG options beyond this narrower 6-seat layout.

Running cost per km compared

Rank	Model	Fuel type	Mileage	Estimated running cost/km
1	Maruti Suzuki XL6	CNG	26.23 km/kg (ARAI, brochure)	₹3.24
2	Hyundai Alcazar (6-seat)	Diesel (MT)	20.4 kmpl (approx.)	₹4.41
3	Maruti Suzuki XL6	Petrol (MT)	20.90 kmpl (ARAI, brochure)	₹4.78
4	Maruti Suzuki XL6	Petrol (AT)	20.27 kmpl (ARAI, brochure)	₹4.93
5	Kia Carens Clavis (6-seat)	Diesel (AT only)	17.5 kmpl (approx.)	₹5.14

Maruti Suzuki figures are the ARAI-certified numbers printed in the XL6's own brochure. Hyundai and Kia either block automated access or do not print ARAI mileage, so those figures are our own and are worth confirming with a dealer.

Key takeaways

• Lowest running cost overall: The Maruti Suzuki XL6 CNG comes out cheapest at roughly ₹3.24 per km, the only genuine mass-market 6-seater with a factory CNG option.
• A nameplate change reshuffled this list: Kia's original Carens no longer offers a 6-seat layout at all. The 6-seater option has moved to a separate model, the Carens Clavis, and its diesel automatic mileage trails what the old Carens used to offer.
• Diesel doesn't automatically beat petrol here: The Hyundai Alcazar's diesel manual beats every XL6 petrol variant on running cost, but the Carens Clavis's 6-seat diesel, being automatic-only, actually lands behind them.

The methodology behind this ranking

Running cost per km is calculated as fuel price divided by certified mileage, at ₹100 per litre for petrol, ₹90 per litre for diesel, and ₹85 per kg for CNG. Only genuine 6-seat, captain-seat configurations are included in this list, not 7-seat variants of the same models that happen to offer a similar cabin layout, since the seating count itself is the defining criterion for this comparison. Availability of a 6-seat configuration is checked separately from mileage and pricing, since manufacturers in this segment have shown they'll restructure entire model lineups, not just individual trims, sometimes without much notice to buyers already browsing older listings or reviews.

Mileage sourcing is not uniform across the brands here, and we'd rather say so than pretend otherwise. Maruti Suzuki prints ARAI-certified mileage for every XL6 variant in its own brochure, so those numbers are firm. Hyundai publishes no ARAI mileage figure in its brochures, and Kia's numbers cannot be verified against a published brochure figure either, so the Alcazar and Carens Clavis mileage used here is our own estimate and should be treated as approximate.

Where a model offers both manual and automatic transmissions, the more efficient of the two is used to keep the comparison consistent across every entry, and the automatic figure is noted separately within each entry so the trade-off is clear. Where a genuine 6-seat option only exists on one transmission type, as is now the case with one entry on this list, that's called out explicitly rather than substituted with a more efficient figure from a 7-seat trim.

6-seater MPVs with the lowest running cost per km

1. Maruti Suzuki XL6 CNG

Price: ₹12.61 lakh ex-showroom (Zeta CNG), the only trim offering CNG on the XL6.

The XL6 CNG is the clear running cost leader among 6-seater MPVs in India, and remains the only mainstream 6-seat MPV with a genuine factory-fitted CNG option.

Engine: 1462cc K15C petrol, producing 87.8 PS and 121.5 Nm in CNG mode and 100.6 PS and 137.1 Nm in petrol mode.

Mileage: 26.23 km/kg, the ARAI figure printed in Maruti's own XL6 brochure and carried on the NEXA site.

Estimated running cost: ₹3.24 per km.

Seating: 6 seats, with captain seats standard in the second row.

Transmission: 5-speed manual only on CNG.

Warranty: 3 years or 1,00,000 km, standard.

2. Hyundai Alcazar (6-seat diesel)

Price: From roughly ₹14.51 lakh ex-showroom across the wider Alcazar range; 6-seater trims sit toward the middle and upper end of that range.

The Alcazar is one of the more established 6-seater options in India, offered as a genuine captain-seat layout across several trims rather than a single top-end variant, and its diesel manual beats every XL6 petrol variant on this list.

Engine: 1.5-litre diesel, producing approximately 116 bhp and 250 Nm.

Mileage: approximately 20.4 kmpl (manual) or 18.1 kmpl (automatic). Hyundai prints no ARAI mileage figure in its brochures, so treat both as indicative rather than certified.

Estimated running cost: ₹4.41 per km on the manual.

Seating: 6 or 7 seats, depending on trim, with captain seats on the 6-seat configuration.

Transmission: 6-speed manual or automatic.

Warranty: Standard Hyundai warranty terms apply.

3. Maruti Suzuki XL6 petrol (manual)

Price: ₹11.62 lakh ex-showroom (Zeta MT), the floor of the XL6's ₹11.62-14.58 lakh range.

The XL6 petrol manual trails its own CNG sibling by a wide margin on running cost, a useful illustration of how much fuel type matters even within the same model.

Engine: 1462cc K15C petrol, producing 75.8 kW (103.06 PS) and 139 Nm, confirmed on Maruti's own NEXA engine page.

Mileage: 20.90 kmpl, the ARAI figure in Maruti's XL6 brochure.

Estimated running cost: ₹4.78 per km.

Seating: 6 seats, with captain seats standard.

Transmission: 5-speed manual.

Warranty: 3 years or 1,00,000 km, standard.

4. Maruti Suzuki XL6 petrol (automatic)

Price: ₹12.97 lakh ex-showroom (Zeta AT).

The XL6's automatic gearbox comes with a small mileage penalty compared to the manual, though it still beats the Carens Clavis further down this list; the Alcazar's diesel manual stays cheaper to run than either XL6 petrol variant.

Engine: 1462cc K15C petrol, producing 75.8 kW (103.06 PS) and 139 Nm.

Mileage: 20.27 kmpl, the ARAI figure in Maruti's XL6 brochure.

Estimated running cost: ₹4.93 per km.

Seating: 6 seats, with captain seats standard.

Transmission: 6-speed torque converter automatic.

Warranty: 3 years or 1,00,000 km, standard.

5. Kia Carens Clavis (6-seat diesel)

Price: ₹17.34 lakh ex-showroom (HTK Plus Diesel AT), the entry point for a 6-seat Clavis on diesel, a configuration worth confirming with a dealer since Kia's own trim tables are not reachable for automated checking.

The Carens Clavis replaces the now 7-seat-only Carens as Kia's 6-seater option in India, but its 6-seat diesel comes only as an automatic, which brings a real mileage penalty over the old Carens and lands it last on this list.

Engine: 1.5-litre diesel, producing approximately 116 PS and 250 Nm. Kia does not publish a comparable verified figure, so this is our own number.

Mileage: approximately 17.5 kmpl, automatic only on the 6-seat diesel variant. A 7-seat diesel manual trim returns a better 19.54 kmpl, but doesn't offer captain seats. Both figures are estimates rather than certified brochure numbers.

Estimated running cost: ₹5.14 per km, the highest on this list.

Seating: 6 seats with captain seats, or 7 seats on other trims.

Transmission: 6-speed torque converter automatic on the 6-seat diesel.

Warranty: 3 years, unlimited km.

Conclusion

For the lowest running cost in a genuine 6-seater MPV, the XL6 CNG stands alone by a wide margin. It's the only mass-market option in this configuration with a factory CNG powertrain. Among the remaining options, the Hyundai Alcazar's diesel manual is the strongest choice for buyers who want a captain-seat layout without CNG, beating even the XL6's own petrol variants on running cost.

Buyers drawn to the Kia badge should go in knowing that the 6-seat Carens Clavis only comes as a diesel automatic, which pushes its running cost above every other entry on this list. That's a real trade-off compared to what the old Carens used to offer in this configuration. For those comfortable trading CNG for petrol refinement, the XL6's manual gearbox is worth choosing over its own automatic purely for the running cost difference.

Anyone open to a 7-seat layout instead, where the field opens up considerably, should also check our broader MPV running cost breakdown and the Maruti Suzuki lineup for more options at a similar price point.

FAQs

Which 6-seater MPV in India has the lowest running cost?

The Maruti Suzuki XL6 has the lowest estimated running cost on this list, at roughly ₹3.24 per km on its CNG variant.

Is the XL6 the only mainstream 6-seater MPV with a CNG option?

Yes, among the models covered here, the XL6 is the only 6-seater MPV in India with a genuine factory-fitted CNG powertrain.

Does the Kia Carens still offer a 6-seater option?

No. Since May 2025, Kia discontinued every Carens variant except a single 7-seat-only trim. The 6-seat captain-seat layout is now offered under a separate model, the Kia Carens Clavis.

Why is the Carens Clavis's running cost higher than expected for a diesel?

Its 6-seat configuration is only available with an automatic transmission, which returns roughly 17.5 kmpl compared to 19.54 kmpl on the manual 7-seat diesel variant, pushing up its running cost. Neither figure is a published ARAI number.

How does the Hyundai Alcazar compare to the XL6 as a 6-seater?

The Alcazar's diesel manual beats every XL6 petrol variant on running cost, though it still trails the XL6 CNG by a wide margin. It remains the stronger pick for buyers who specifically want a diesel captain-seat MPV.