DLC #8 + 9 - Motorstorm Pacific Rift Speed and Adrenaline Expansion Packs

The Speed Expansion adds 12 trophies, most of which are tied to the new batch of festival events released in the pack, with 8 trophies rewarded for completing each of the festival events relevant to each of the 8 vehicles in the game. Thankfully, they're nothing as demanding as the rank 7/8 festival events in the main game, and can all be completed within a few tries.      

                    

Beat the Devs!

There is a silver trophy for winning an online event on each of six new Speed tracks, which can be earned in tandem with the only gold trophy for winning an online even with the 6 DLC character skins. Thankfully, there is a DLC only playlist which allows you to hop onto the tracks easily, but the fierce online competition in Motorstorm might require a fair bash at these 2 trophies before you unlock them.                    
                                                     
Just for good measure, theres also a trophy for beating 48 developer time trials, and yes, some of them are just as menacing as they were in the main game, so good luck there!                                  
The Adrenaline Expansion pack slices the number of trophies to 4, with the exclusion of any new festival events, but does add 8 tracks and more time trials.                                               
Time trials still throw up a few tricky times, and due to the additional of more tracks than the Speed pack, there are more of them to conquer this time round (64, as opposed to 48). There is also another recycled trophy of winning an online race on each of the 8 Adrenaline packs.                
There isn't really much variety in the trophies, and some of the tracks are rehashed versions of the original ones, but the new tracks in both packs are fun to race on and do look beautfiully crafted. The trophies also ensure you'll be spending alot of time of them, so the packs are an overall success.