Another Matt 
2002 Toyota Prius Sedan 4dr Sedan (1.5L 4cyl gas/electric hybrid CVT)
Cool technology
 This car definitely delivers on its 
mileage promise.  Like other reviewers, 
I've been getting about 45-50 mpg in 
regular driving.  The most impressive 
mileage I got was 53 on a roughly 500 
mile journey -- did the whole thing 
with one tank of gas.  Mileage seems to 
vary with weather (the engine runs more 
in the cold).
 I looked up a bunch of the patents 
behind this car.  Man those guys are 
clever.  The connection between the gas 
engine and electric motor is truly 
elegant.