there isn't too much difference from the original game except there is an extra challenge in the challenge series mode it challenge #70
on this challenge you be driving a 67'' camero and you will have a extra heat level at #7 on this level you will have super charged SUV's about as fast as your car and you will be ask to get a total of 500,000 bounty to beat challenge....

Same as original..Heat Levels ..
Heat Level #1 
you will have Police Civic Cursiers ..these are easy to get away they only have total number of 5 cars they mainly chase you...
on blacklist 15-14 this level is 10-mins on 13-11-5 mins on 10-8 -3 mins on 7-1- 2 mins for the length of the level

Heat Level #2 the man in black
you will have Undercover Civic Cursiers..you can still get away of this pursuit but they start doing roadblocks they are easy to dodge but if you are at beginning of blacklist like #15-#13 they can be tough if you have a slower car they have give total number of 10 cars
length of pursuit level  Blacklist 13-11- 10 mins 10-8- 5 mins 7-6- 3 mins 5-1- 2 mins 

Heat Level #3 getting tougher 
you will have Police GTO's ..now these are heavier and and faster than the Civic cars on this level they will start using SUV's to try to ram into the front of you car this are light SUV's they will do GTO roadblocks and SUV's roadblocks they have a giving number 15 police cars 
and they new thing is rolling roadblocks where they gathering around you car to box you in....
Length of pursuit level Blacklist 9-7- 10 mins 6-5- 5 mins  4-3- 3 mins 2-1- 2 mins 

Heat Level #4 they are getting serious 
you will have Undercover GTO's now they will start doing spike strips to slow your car down..they will start using heavier SUV's and they will use everything they have used in the lower heat levels Rolling roadblocks Roadblocks also the Spike Strip Roadblocks because not to drive through the clear because you drive over the spike strips they you will be busted instantly they are giving 20 police cars you will have a hoilcopter chasing ..
pursuit length Blacklist 5-4- 10 mins 3-2 5- mins 2-1- 3 mins 

Heat Level #5 the cross is ready to take you down!!
you will have Police Corvettes you don't want to mess with these guy as they are fully tuned up corvettes and they are even faster about fast as your car maybe not as fast as car they will have Nos which they will go really fast and they are giving 25 police cars they will use everything they have done in the lower heat heats such as roadblocks and spike strip roadblocks and Heavy SUV's raming your car..and the hoilcopter will start attacking your car..this is the highest heat level in the again you cannot go no higher than this once you beaten the game..length of pursuit 10 mins Challenge series #68 only! otherwise.

Heat Level #6 Challenge series 68# and after beating Razor..
you will have undercover corvettes and Super Charged SUV's this heat level is only achieved only when beating razor and in challenge series #68 ..they will use everything they used in Heat level 2-5

Heat Level #7 Blacklist edition only..challenge series #70
you will have Super SUV's abouts as fast as your car they will use everything they have used in heat levels 2-6 ..