I asked the same question before I got mine, see that thread here - Wheels: 20' vs 18"
All those answers are still relevant.
Is there a reason the dealer is offering this to you? Have they said they will give you a discount? They will sell them to someone who buys a Laredo but wants 20s for an extra charge. I chose the 18s solely for cosmetic reasons, but negotiated a discount for doing it.
If you chose to swap to 18s, make sure you get something for it, if you have signed a contract already, then get them to include extras, mud flaps, cargo liner, front window tint, fitting of break controller etc..
Also, did you mean to have your email address as your username?
I'm just want it for the "shorter headlamps".
MY14 GC Limited, 3.0 CRD, Lux II, Granite Crystal, 18" Wheels, Tubular Side Steps.
Could I get my avatar much larger?
Ordered: July 7 2013 Delivered Nov 25th