larryB 
2010 Nissan Sentra Sedan 2.0 S 4dr Sedan (2.0L 4cyl CVT)
Refinements not frill
 I forgot to mention one of the main virtues that impressed me about Sentra S model: It has a very user-friendly cruise control unit on the steering wheel that I find very convenient when I am on the open road. Also, the micro- filtration A/C unit (pollen filter) is something missing even on much more expensive cars.  In sum: great refinements for a compact car - without the frill.  Fun MPG. Thanks again Nissan!