lighting in the newer trains and one smelly dude

i typically ride in the "old style" trains as they seem to be the ones that pull up to my usual door entrance. the other day, i ended up in a "new style" train (the ones with T.O. cubbies on both ends). the reason i ended up in a new style train is as follows:

i get on my usual old style train/car in the evening at macarthur. immediately upon entering i get the strongest whiff of urine, puke, feces and who knows what else that i have ever experienced. i sit down, hoping the smell will go away or i'll get used to it (stupid idea). some others get up and move. as we are approaching embarcadero, i decide i better move to the next car while there are still seats available (this is the first time i have ever moved because of a smelly or loud or whatever person). as i make my way to the between-car doors, i find the root of the smell - sleeping in the hobo juice seats is one NASTY looking transient.

anyway, the real reason for my post is that when i got in the new train the lighting was noticably dimmer. looking at the ceiling, it looked like all the lights were turned on, so i am not sure if there are less lights, or they are a smaller wattage, or what. the only thing that seemed different on the two trains was that the brighter one was the "old style." are the new trains really darker? to me, the darker train felt a lot more dreary and less inviting.