Length should not be a problem as most states allow 65 including trailer and tow vechile max length.

Biggest yacht you can tow. Maximum trailer width is 250m nationwide which is fine for Aussie boats but can put owners of some US boats over the limit. The best boat is the one that youll get the most enjoyment out of out there on the water. I have a Sea Ray 268.

The largest Super Class Cs are built on a class 8 semi chassis the largest vehicles on the road today towing as much as 40000 lbs. The maximum trailer width for any towing vehicle is 255 metres. This example is just a rough average and will vary depending on many other factors.

Above this you require a permit and will be restricted to daylight only as well as some route restrictions depending on wether you are ruralmetro etc. Max width without restrictions is 25 metres. To tow such a boat the rules are slightly different in each state.

2If you tow a small trailer without brakes the weight of the trailer is limited to 50 of the kerb weight of the car or 750kg whichever is less. The biggest concerns about trailering an oversized boat are dealing with state. This is 1500 pounds more than the other models.

Many larger US boats have a 259m beam pushing them into the oversize category. Max height is 46 metres and length of vehicle boat combo is 19 metres without permits. Not only does this engine allow you to drive 500 miles on a tank of gas but it gives you 5000 pounds of towing power when equipped with the Class III tow package.

Here is a link for state by state towing laws. Another thing to consider is brakes. Maximum boat size for towing.