Originally Posted by Curlew
Well, masses of good advice there, so huge thanks to everyone who has taken the trouble to help.
To answer some of the questions, my Volvo is an automatic and lives on a gravel drive. It won't last as long as the boat, but it fits with all my other driving needs so I'm really not keen to go to a 4x4, especially when the RIB spends most of its time being very efficiently dry launched by Sparkes Marina on Hayling Island. It is used for bass fishing with friends in the Solent and for waterskiing with various teenagers and young adults in Langstone Harbour. But then we decamp to Kerry for three weeks every summer, which is a 900 mile round trip and the highlight of the year. So that's where the towing comes in and also why I want a boat that can cope with some bumpy weather.
If I could afford it there is clearly a case for 6.8 + double axle trailer + 4x4. But the sums (higher initial cost, marina fees, fuel consumption for car and boat) are pretty frightening, so I think it's going to be 6.4 + lightweight (Gecko) trailer + Volvo. That looks as though it would be less than1500 kgs all up, which is a fair safety margin below the max for the car and means I don't need a specially lightened boat. And of course there's always the option to switch to double trailer and 4x4 if I start doing more trailing when I retire in a few years time.
Seems like a prety good decision that suits YOUR needs not everyone else's
Enjoy the new boat & have fun