First welcome to fiberglassrv the place for
light weight trailers. (love the mileage)
Have pulled a 27' with a heavy duty full sized v8 van; lots of gas though and at todays prices? TV had cooler
brakes WD system and more.
First I am not an expert but:
The 13' is
light and nimble 1000 lbs, small to medium car 1.4L can pull it depending on car ratings. A few with washroom. (less gas)
Then 16' 17' 1900 to 2500 lb range need 1.8L to 2.4L through 6cyl depending on
weight and other factors to pull these. mid size to large car. Most 16' and 17' units have a washroom and may have shower combo or even separate shower in a few cases. (not to bad on fuel depending on TV and other factors)
19' large car or if 5th wheel truck to pull this size do to
weight. (bigger pit stops)
Dealer said the plain rating is unbraked, no transaxle cooler, also we have to consider the hitch used and how it is setup. (electric
brakes and cooler effect what is possible)
Hope the little note helps