I have a Hornbeck Canoe 10 1/2 get long. It weighs 17 lbs. It's as easy to lift on the car as my bike. It is paddled seated with a double bladed paddle. It holds me and a pack and I have paddled and portaged it for up to a week. It is fast for its size and very stable and dry in wind and waves.http://www.hornbeckboats.com
Placid Boat canoes are great too but a lot more money.