When you reach the legal
size limit for a trailer it will no longer be a dinghy nor could you pull it with your small car. The legal
limits are based on one size (check with the state DMV). If your small car can not pull it then the boat is also not a dinghy either. I wouldn't see any of that as a barrier for a sailing dinghy. They don't weigh that much and most would be around 20 ft or less.
I wouldn't think a car top sized dinghy would be that much fun. It would bascially be a sail board and you would need a wet suit. You may like sail boards! You might want a wet suit one any way. Hiking out over the water
and just being in a dinghy means some water
is flying around. You may not want to get wet but you easily could. In cold weather
it would be foolish not to have a wet suit. You won't last long in 50 degree water. It will extend your sailing season by at least double or more.
If I could pick any dinghy I would probably get a 19 ft. Flying Scot. I have a Montgomery 8 ft Sailing dinghy. I use it mostly as a row boat tender
. I wouldn't take it sailing in anything other than very fair weather
. There are folks that race
such things but if you want a true sailing dinghy why not get a modern one with some performace capabilities and something really fun to sail.
You might find a race
club and do some class racing
too or at least find others that sail the same boat you end up getting. Gives you more options.
The Fylying Scot is not heavy by any stretch (you do need a trailer) and you could handle the whole operation single
handed. They can take a serious amount of wind
and peform quite well plus you can take a passenger or two on a nice day sail. there are many other poular one design boats you might consider. Used might net a pretty good deal with all the accesories thrown in.