GTA 4 post-100%

So I've been just free-roaming in GTA 4 after getting 100% (mainly going on rampages with the semi truck), and I've noticed a couple things are different. One, there's no limit on ammo anymore (after using the 555-GTA-0100 cheat several times, I could have over 100 RPGs). Another I've noticed while running from the cops, there's a new type of police car, or at least one I've never noticed before - instead of only the regular white police cars with the 7 red and white flashing bulbs on the top, there are also some white police cars but with a single bar across the top that lights up, almost like LEDs.

Has anybody else noticed this stuff, or found anything else that's different?

I just recently achieved 100% with my used copy of GTA4 (and) I'mproud of myself since I have never truly completed a GTA game prior to this. As far as changes go,the ammo cap removal is the most widely recognized difference. I have seen white patriots previous to 100% and I havn't noticed any new police vehicles- it may be a lot easier to get close to the fuzz (w/100 rpgs)and now you're noticing a wider array than before.I haven't looked in any of the helicopter spawn points besides the MeTV building after blowing away all the flying rats - there could be changes.

It would seem that bragging rights are the biggest reward. Still, anAnnihilator with rockets would have been baaaadddaaaaassss.