First of all instead of guessing perhaps you should take a look at the data plate for your vehicle.
On many vehicles it is located on the drivers side door plate, some it has been in the glove box.
This plate will tell you your GVW and combination weights.
My first thought though is a 25ft 4K empty trailer is going to be out of the question.
Back years ago I was selling a 20ft TT which weighed 3600 lbs empty, had many people look at it but everyone was wanting to tow it with Jimmys, Jeeps, Explorers and such. The one that actually ended up buying it was the one that pulled in with a 1/2 ton truck.
Those small vehicles are fine and nothing wrong with them but I really didn't want to see them get into a dangerous spot. Heck it even was a challenge at times with my 3/4 ton truck at times...
