H6L and H6 have separate configuration tables. For a sourcing enquiry, compare the actual trims rather than interpreting the extra letter as a complete specification.
Start with the dimensional difference
The cited China configuration data lists a 2,810 mm wheelbase for H6L and 2,738 mm for H6, a difference of 72 mm. This is a wheelbase comparison, not a measurement of rear legroom. Check total length, width and height separately, and use actual-vehicle measurements or an inspection when a particular clearance is critical.
Inspect both cabins before choosing
The galleries show cockpit layouts, seat finishes and rear-passenger views. Use them to identify questions about access, storage, seating and controls. Images can show another trim or an optional colour, so confirm the requested interior specification in the quotation. A photograph is useful evidence of layout but does not replace the configuration list for the proposed vehicle.
Find the equipment differences that matter
Select an H6L trim and an H6 trim in the comparison tool. Enable differences only, then search for the equipment category you care about. Read standard and optional symbols carefully. If the manufacturer uses different parameter names, the rows remain separate; ask for clarification rather than interpreting an empty counterpart as proof that equipment is absent.
Use a shortlist in your enquiry
State the preferred model and configuration and identify an acceptable alternative. Include required seating features, drivetrain, cabin colour, quantity and destination. Ask for each proposal to specify its model year and included equipment. For dealers, use a separate configuration line for each requested batch so a later trim substitution is easy to spot and agree in writing.

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GWM Menglong PLUS
HAVAL Dagou PLUS PHEV
HAVAL Menglong PHEV
HAVAL Xiaolong MAX
GWM Dagou
HAVAL H6L
HAVAL Dagou PLUS
HAVAL Menglong Petrol
HAVAL H6
HAVAL H6 Classic