Sadly, the compliance sticker on a VF's B pillar does not list the vehicle's Gross Vehicle Mass since it's not a legal requirement to do so on passenger vehicles. Stupid as the exclusion is, it doesn't help people who to that Holden plays coy with GVM specs and doesn't freely provide it when requested.
About the only specs Holden provide is kerb weight, tow capacity and rear axle load.
And you can be reasonably certain the Holden makes it sound like the vehicle can tow a big rig by calculating the vehicles payload is at a bare minimum (empty vehicle and just the driver). What this means is that as you throw in three passengers and their luggage into your car, the tow capacity would be correspondingly reduced. As such, i'd say that any manufacturer specified vehicle towing capacity must be reduced by at least 300 kgs to cater for ones fat mates when going on that trip.
Worse still, many look to superlift shocks as a solution to gain a level ride, which usually means the Tow Ball Mass is well in excess of that assumed by the manufacturer. This excess should then cause a further reduction that must be acounted for in tow capacity but sadly many don't understand or don't care so end up well above the legal towing limit. And in all likely hood, the rear axle load is also exceeded.
What must be considered is the TBM is recomended to be between 5-10% of the legal towable trailer mass. As such, a TBM would and should not result in the car draging it's bum as it tows (an indication of either poor loading on teh trialer or overloading of the trailer or both). This TBM % is basically designed to allow for a safe and stable trailer/caravan/ect to be towed and those that don't folow it do so at their own and other road users peril .
Lots of web sites dedicated to towing caravans safely so if one is not sure, google or ring Vicroads
Last i looked at the towbar specs for a VF commoder, the trailer and it's content shouldn't be more that 2100kgs which implies a maximum TBM of 210kgs. But it's still a balancing game due to rear axle loads and carry capacity playing with TBM.
But i think the OP isn't at all concerned about such legalities as he thinks a V8 will solve all towing trailers. But i hope he does drop by a weigh bridge and get the axle loads front and back measured as well as the trailer's axle load. He may be surprised how overloaded he is. Then hopefully he can ajust his towing loads or get a haevier more capable vehicle to tow what he needs.
That way OP may avoid the issue i recently saw in a picture on another thread where a utes axles failed. I'll add that pic if i can find it
