I was thinking of installing a trailer hitch, like this one:
and pulling a motorcycle cargo trailer like this:
or even this:
I would use this for luggage on family vacation. We have 3 kids under the age of 7, so no room in the car. I thought any issues of gas mileage that might be incurred may be offset by not having anything or very little (from a weight perspective) in the trunk.
Anyone have experience with a similar setup or have thoughts?