Towing four down is easier, only one item to contend with having a dolly requires that you hook the dolly to the RV and then get the toad on to the dolly, on some front wheel drive vehicles this is the only option then you need to store the dolly somewhere next to the RV when it is not being used.
I have a class C and tow a Suzuki I have a brake system made by SMI, most states use a performance criteria, it states that the motorhome has to stop in a certain distance from a given speed with the vehicle being towed, only trailers that are ABOVE 1500 pounds need brakes in the State of California and motor vehicles as in cars are not required to have supplemental brake assist, it is left to the owner to have or not not have brakes assist on the toad.
Having the supplemental brakes has saved me from idiots that either decide to exit the freeway at the last moment or think that stop signs and red lights do not apply to them.
navegator