You would think that the GXP would have Xenon lighting. I have had my 04 SLE for almost a month now and will write up a review in a few weeks. There is a lot to like about the 04 Bonneville but you would think that some things would have been improved upon. I also liked the way the GXP had the fog lamps positioned. It looks like a set of PIAA or CATZ projector fog lamps will fit right into the opening.
The GXP has projector fog lights.... Projector fogs aren't really better but they're more "high tech" and "cool"....
The lamps have to be better than the 27Watt bulbs that come in the SLE the same ones that were in my 95 Bonneville. I ordered a set of Nokya 893 yellow bulbs off of eBay as a replacement. If I dont like the yellow then I will go to the 893 Silverstar bulbs. At 37 1/2 watts the 893 bulb is a decent replacement in the stock lamp. Read this as a cheap fix instead of a decent lamp. I have a few other mods I want to do before purchasing a set of PIAA fog lamps.
SSEI - 1) chrome wheels, 2) supercharger, 3) Better gas mileage, 4) pretty much the same as GXP excluding 35hp+ V8 and 18' chromelesses.
GXP - 1) Maybe if used, 2) Not enough to draw me away from SSEI with the $35-$38Gs price tag, 3) Useless/bad suede seat inserts w/baby on the way.