sorry if i sounded a bit pessimistic on an earlier post. If your purpose is a daily-driver with all the finesse, Starex Limo would be my pick. If the purpose would be for occasional socialite events, or if you need to modify your ride as a bullet-proof transporter, Suburban would be my pick. But it's just me and I might also err.
As far as chips, I have no experience with those enhancements, so far... but i think they only work on diesel engines with crdi technology.