The Honda Insight was the first mass produced hybrid car. It was only a two seater that could not support a large family, though it had the highest fuel efficiency of all the hybrids, achieving 70 miles per gallon (mpg).
http://en.wikipedia.org/wiki/Honda_Insight
Now the most efficient car in 2008 is the toyota prius, which seats five.
Other pictures of Hybrids.
The last picture is of a Ford Escape which, unlike the honda insight and toyota prius, can fit more people and cargo, has the option of being four wheel drive and still is a hybrid.