The N6_7 is "Suppose" to have about 50% more capacity than the l series. Not ever running an l I wouldn't know! The N6 drawback is the engine, if you page down you can read some fairly easy remedies to that problem. The N7 had some updates as did all the N series but were fairly trouble free machines. All the UPDATES were done years ago in the N's so nothing to worry about now and parts are easy to come by. The R series are newer and more advanced than the N but the "Deutz Era" R machine does have a parts supply problem, AGCO Era are OK. And "Hyperized" is the KEY word to really make these machines last and run with ease. My N6 is and run great in corn and soybeans, and never plugs or pulls down!