4.6 or 4.8?

[Pierce330]

Hi Everyone,

I am not new to BMWs, but I am new to the possibility of purchasing an X5, E53 to be exact. I know that this has probably been discussed numerous times...lol
However, in terms of reliability, what would be the better purchase: 4.6 or 4.8? There are a few options for sale right now in the GTA or Greater Toronto Area for our friends in the South...Worst case, I will likely jump into a 4.4...There are a host of great indie shops near my place that specialize in BMWs, so I am not so worried...

Thanks in advance...looking forward to your advice

BTW: I am a newbie here...have been following the happenings of this forum for a while before I decided to sign up...