ok so the wife is wanting me to get a new truck cause she is wanting to start having kids and ive been lookin at the new 2010 taco 4x4 and i like them but my question is. is the new 4.0 as good as the 22r,22re,3.0,3.4? and how does the 4x4 system work i remeber my old 90 model yota it had the add system and it worked when it wanted to and i know this truck will be around for a very long time and i dont want to have to worry bout the 4x4 system not working.