Have seen some gameplay videos (thanks for those who shared them with us!) and I'm not disappointed. Everything looks great! Seems like there are different Fire Trucks and ambulances, according to from what I've seen so far!
Looking forward to drive them all. ^^
By the way, did anyone notice that they actually use the real life sirens (compared to some videos of respondings on YouTube)? I really like the new ones, especially if you look back on how bad it was in GTA IV.