I'm thinking about buying a Sentra but can't decide between the GXE or SE. Can someone tell me if there is really a noticable difference between the 1.8 and 2.0 engines? I like the fuel economy and cost of the GXE, but all the best reviews seem to be of the SE. For the record, I'd use this Sentra for everyday commuting to work (mixture of city and highway) and the occassional long distance weekend trip. A pleasant ride is very important to me, but I test drove the SE and really liked the acceleration, and the ride seemed to feel pretty good.