Nissan 
2007 Nissan Sentra Sedan 2.0 S 4dr Sedan (2.0L 4cyl CVT)
Great Mileage - After 15k
 Great highway miles after 15k miles - suddenly mileage went up 3 - 4 mpg.  Now averages 34 - 36 on highway at 67 mph (about 2,000 rpm)  Love bluetooth, quiet ride, & CVT - no gear lurching and slight hum isn't noticeable unless your foot is on the floor.  Hate the absolutely terrible plastic interior - look sideways at it and it mars - completely ruins the great design.