Plan Tank 300 towing, payload and roof loads using version-specific ratings, axle limits, measured weights and destination approval.
Prove the legal rating for the VIN
Collect the compliance or manufacturer plate, registration record, owner documentation and destination approval that apply to the candidate. A sales brochure can identify a possible rating, but local authorities or insurers may require a recognised homologation record. Confirm braked and unbraked limits separately and identify any gross combination mass and maximum tow-ball download. Recovery hooks are not a trailer coupling, and an aftermarket hitch does not create a legal rating that the vehicle itself lacks.
Payload disappears one item at a time
Subtract the actual prepared kerb mass from the applicable gross vehicle mass, then account for passengers, luggage, tow-ball download, fuel treatment under the local definition and every accessory. Steel bumpers, winch, underbody guards, larger spare, drawers, refrigerator and recovery kit can consume a large part of the available margin. Brochure subtraction is only an early screen because a modified used vehicle needs to be weighed in travel condition, ideally with axle loads recorded.
Roof systems need separate limits
Confirm the vehicle roof limit and the rack manufacturer’s dynamic and static ratings. The lowest applicable limit controls. A rooftop tent may be acceptable when parked yet create excessive dynamic load while driving, particularly after adding crossbars, awning, boards or fuel containers. High mass raises the centre of gravity and affects braking, crosswind response and side-slope behaviour. Measure shipping height after the roof system is installed, and remove equipment when it compromises container or carrier acceptance.
Inspect and operate the combination
Check hitch attachment, fasteners, corrosion, trailer socket, wiring protection, brake-controller requirements, cooling, tyres, brakes and rear suspension. Confirm that driver licence, trailer brakes, safety chains, mirrors, speed limits and insurance comply at the destination. A heavy trailer can reduce payload, range and off-road angles at the same time. Before remote travel, weigh the full combination and conduct a controlled stability and braking check rather than using engine torque as proof of safe towing.
Evidence to collect
- VIN-specific tow approval
- GVM, axle and combination limits
- Actual prepared vehicle weight
- Tow-ball and trailer brake limits
- Roof and rack ratings
- Destination licence and insurance rules
Apply the guide to a real candidate
Use a one-page mass worksheet
List the measured empty vehicle, each permanent accessory, occupants, luggage, trailer download and roof system. Show the resulting total against gross vehicle mass and each axle limit, then show the trailer and complete combination separately. Keep documentary sources beside each limit. This worksheet prevents a common error: checking trailer mass and payload independently even though tow-ball download and accessories reduce the vehicle’s remaining capacity. Reweigh after any bumper, winch, suspension, wheel or storage-system change.
Do not confuse capability with approval
Low-range gearing and strong torque may help move a trailer, but they do not establish a certified limit, safe high-speed stability or insurance cover. A seller demonstration is not destination approval. Ask the local authority, insurer and tow-equipment installer to identify the accepted evidence for the exact imported VIN. If no recognised tow rating can be established, buy on the assumption that towing is unavailable rather than hoping a general overseas brochure will be accepted after registration.
Final approval control
Do not approve a towing purchase until the exact vehicle, coupling, trailer and destination rules form one documented combination. The file should contain recognised ratings, measured vehicle and axle weights, trailer mass and download, tyre specifications, brake and electrical requirements, licence and insurance confirmation, and an accessory list. Any missing high-impact limit should be treated as a stop item. Recalculate after preparation because an added winch, rear carrier or roof system can invalidate the margin that made the original combination appear acceptable.
Primary references
Specifications and equipment can vary by market, model year, trim, VIN and production batch. Verify the exact vehicle and current destination rules before purchase.
Official GWM South Africa Tank 300 brochure ↗Official TANK 300 specification table ↗Frequently asked questions
Can every Tank 300 tow 2,500 kg?
No. Ratings and legal recognition vary by powertrain, market, VIN and destination approval.
Does tow-ball weight count against payload?
It normally contributes to vehicle loading, but use the applicable local definitions and limits.
Can I put a rooftop tent on a Tank 300?
Only after confirming vehicle and rack dynamic/static limits, total roof-system mass, handling and shipping height.

