There are 11 new Trophies in this DLC.

Bronze

Fender Bender
Wreck 5 cops in the GUMBERT Apollo S

Biteback
Beat a friends recommendation in the Bugati Veyron 16.4 Super Sport

Show Off
Take a photo of the Porshe 911 GT2 RS and share it with your friends

Blast Off
Complete 5 online races in the GUMBERT Apollo S

Slip and Slide
Do a 1000 yard (915 metres) drift in the Porshe 911 GT2 RS

Land Speed Record
Hold the Bugati Veyron 16.4 Super Sport at top speed for 2 seconds

Moon Shot
Bust a racer in the GUMBERT Apollo S Interceptor at night, online or offline

Sting in the Tail
Get 5 spike strip hits with the Porshe 911 GT2 RS Interceptor

Hotshot   
Win an online and an offline Interceptor event in the Bugati Veyron 16.4 Super Sport Interceptor

Silver

Untouchable   
Get gold in all the Super Sport Racer events

Swift Justice
Get distinction in all Super Sports Cop events

http://www.ps3trophies.org/game/need-for-speed-hot-pursuit/trophies/