The XPENG G6 seats five within a 4,758 mm-long body, using a 2,890 mm wheelbase that equals about 60.7% of its overall length. The 2026 specification is 1,920 mm wide and 1,650 mm high, while the rear luggage compartment holds 571 litres with all seats occupied and 1,374 litres after the 60:40 rear bench is folded. Rear backrests offer a 27°–38.4° recline range, and the 2.12 m² panoramic roof helps preserve an open feeling above the second row. For four adults plus luggage, the G6 provides enough cabin and boot space for regular long-distance use.
The proportions explain much of that room. A wheelbase of 2,890 mm inside a 4,758 mm body leaves relatively short space outside the axles, allowing more of the vehicle's length to be used around the passenger compartment. Width is also substantial at 1,920 mm, while height remains 1,650 mm despite the sloping rear profile. XPENG's current 2026 specification lists five seats across both Long Range and Performance versions.
| Measurement | 2026 XPENG G6 |
|---|---|
| Overall length | 4,758 mm |
| Overall width | 1,920 mm |
| Overall height | 1,650 mm |
| Wheelbase | 2,890 mm |
| Seating | 5 |
| Boot, seats raised | 571 L |
| Boot, seats folded | 1,374 L |
| Turning radius | 5.8 m |
Those exterior numbers matter because a battery-electric platform does not need the same engine bay, exhaust routing or traditional transmission layout as a combustion SUV. The cabin can therefore place the seating area within a relatively long 2,890 mm axle span. For someone comparing a elctric suv primarily for passenger room, wheelbase-to-length proportion is more informative than exterior length alone.
The front seats make use of that packaging with electric adjustment rather than a fixed high SUV seating position. Current G6 specifications offer up to 12-way adjustment, depending on version, with heating, ventilation, memory and massage equipment available in relevant markets. In a 2026 family vehicle, seat adjustment also affects rear room: moving the front cushion only as far back as needed preserves knee clearance for the second row.
The centre area avoids a large conventional transmission tunnel, and storage is placed around the floating console and its lower section. XPENG also lists underfloor console storage. Two 50 W wireless phone-charging positions appear on some European specifications, giving front occupants separate charging locations rather than requiring one device to occupy the main tray.
Cabin space is not only the distance between two seatbacks. Seat travel, floor height, console width and the amount of usable foot space determine whether the quoted dimensions remain useful once four or five people are inside.
The second row benefits most clearly from the long wheelbase. Rear passengers get a relatively flat floor and adjustable seatbacks rather than a fixed bench angle. XPENG specifies a 27°–38.4° recline range on current versions, an 11.4° span that lets passengers choose a more upright position for shorter trips or lean farther back on motorway journeys.
That adjustment also changes how the rear cabin feels to taller adults. A more reclined torso position can create extra perceived head clearance under the descending roof, while the 1,650 mm vehicle height gives the cabin more vertical room than a conventional low-roof fastback. Three adults can occupy the rear bench, although two adults will have more shoulder and elbow room across the 1,920 mm-wide body.
The roof adds another measurable element. The current G6 uses a 2.12 m² panoramic glass panel, and XPENG states 99.99% UV protection with SPF100+ performance on the latest version. European specifications for related versions also quote more than 86% heat insulation and over 99.9% UV protection. Large glass area does not create additional millimetres of headroom, but it removes much of the visually heavy roof lining above the rear passengers.
Family use also depends on what happens around the outer rear seats. Current European specifications list two rear ISOFIX mounting positions, heated rear seating on relevant trims and a fold-down centre armrest with two cupholders. Seven airbags are listed in the same 2026 equipment specification. Two child seats can therefore occupy the outer positions while the centre section remains available for a smaller passenger when required.
The luggage compartment is equally measurable. With all five seats available, capacity is 571 litres. Folding the rear seats raises volume to 1,374 litres, an increase of 803 litres, or about 140.6%. The 60:40 split also avoids an all-or-nothing layout: one portion can remain upright for a passenger while the other carries a long bag, sports equipment or flat-packed items.
XPENG provides a more practical illustration than litres alone. Its G6 brochure states that the 571-litre compartment can accommodate a combination of 32-inch, 28-inch, 26-inch and 20-inch luggage. Packing will vary with suitcase shape, but the manufacturer is describing four separate cases within the standard five-seat cargo configuration rather than after folding the second row.
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571 L with five seats available
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1,374 L with the rear bench folded
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803 L of additional quoted space after folding
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60:40 split rear backrests
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Four suitcase sizes cited by XPENG: 32, 28, 26 and 20 inches
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Up to 1,500 kg braked towing capacity on applicable 2026 versions
Capacity figures become more useful when the loading opening is measured. XPENG quotes approximately 923 mm of lateral opening width and a 761 mm tailgate sill height in its G6 brochure. A 761 mm sill is around three-quarters of a metre above the road surface, so a 20 kg suitcase does not have to be raised to chest height before being moved into the boot.
The 923 mm opening also matters for rigid objects. A boot can have a high litre rating while still being awkward for boxes, folded pushchairs or equipment that cannot be rotated easily. Here, the opening is wide enough for many household items, while folding the 60:40 backrests provides a much longer load area beyond the normal 571-litre compartment.
For luggage, the useful comparison is therefore not 571 versus 1,374 litres alone. Opening width, sill height, rear-seat split and the shape of the load floor determine how much of the published volume can actually be used.
Vehicle payload places another limit on what can be carried. The current Australian configurator lists 475 kg payload for the RWD Long Range and 470 kg for the AWD Performance. Five adults averaging 75 kg would account for 375 kg, leaving around 95–100 kg before reaching those published payload figures. Four 75 kg adults would use 300 kg, leaving about 170–175 kg for luggage and other equipment.
That calculation matters more than boot volume on a heavily packed trip. A family may still have physical room remaining inside the 571-litre compartment while approaching the permitted vehicle mass. The Long Range version is listed at 2,115 kg kerb weight and 2,590 kg GVM in Australia, while the AWD Performance rises to 2,220 kg and 2,690 kg respectively. The extra AWD hardware therefore adds about 105 kg to kerb weight, while rated payload changes by only 5 kg.
Owners carrying bicycles, boards or bulky outdoor equipment have another option above the cabin. XPENG's 2026 technical information lists a roof-load rating of 75 kg. The same specification gives up to 1,500 kg braked towing capacity and 750 kg unbraked capacity on applicable versions, allowing luggage that is too large for the 1,374-litre folded-seat area to be moved outside the cabin.
Those external carrying limits also help when five seats must remain occupied. Folding the second row provides the greatest internal volume, but it removes passenger positions. A roof box or suitable rear carrying system lets the 571-litre boot remain available while keeping all five seats in service, subject to the 75 kg roof rating and the vehicle's total permitted payload.
The coupe-like rear profile creates one trade-off worth checking in person. The roof descends toward the tailgate, so very tall rear passengers may experience less space above the head than the 2,890 mm wheelbase suggests from legroom alone. The adjustable 27°–38.4° backrests partly compensate by changing torso angle, while the panoramic panel reduces the amount of conventional roof structure immediately above occupants.
For two adults in front and two adults in the rear, the physical dimensions leave little reason to fold seats or move front occupants unusually far forward. With three adults across the back, shoulder width becomes more relevant than legroom; the vehicle itself is 1,920 mm wide, but door structures, trim and seat bolsters reduce the cabin width available to bodies.
With children, the layout is easier to use. Two ISOFIX positions allow child seats on the outer rear locations, the flat floor gives the centre passenger more foot placement options, and the 571-litre boot remains available for a stroller plus bags. In the 2026 equipment specification, rear-seat heating and the adjustable backrest add functions that are useful on longer trips rather than only during short urban journeys.
Airport use shows the packaging in another way. XPENG's cited four-suitcase combination uses 32-, 28-, 26- and 20-inch cases while the rear seats remain upright. If only two or three people are travelling, folding part of the 60:40 bench raises available volume toward the 1,374-litre maximum without requiring a larger vehicle body.
The 5.8 m turning radius listed for the current Australian model also keeps the 4,758 mm body manageable in car parks, where interior space is useful only if the vehicle can still be positioned comfortably. Compared with simply stretching the body beyond five metres, the G6 uses its 2,890 mm wheelbase and 60.7% wheelbase-to-length ratio to reserve a large share of its footprint for people and luggage.