Need for Speed: Undercover

You must complete all career races it does not matter if you dominate them or not

Progress can be checked from the ingame GPS - press "x" for world overview and the "x" for stats

EDIT: It appears its "y" for world overview and then "x" for stats, sorry i was doing it from memory and forgot to check - thanks you randomnutta

Must complete all events. Sprints, circuits, escapes, outruns, cost to states, cop takedowns, highway battles.

I prefer to use the Pagani Zonda. It goes very fast and has the best handling in the game. Handling really matters in this game. The Bugatti is the fastest car in the game but has really shitty handling. The Porsche Carrera GT and Lamborghini Murcielago are both pretty good cars too.

Remember, speedbreaker and NOS are your friends.

EDIT:
Dont worry about the other single player achievements, you will more likely than not get all of those while going for this one.

You don't need to Dominate all the races only complete them. However you should do it on all you are able to, so you get better driver skills. Which will improve your chances on the higher levels. also remember that you need to use RB and LB to show the track you haven't played. The game will only show races within your rank boundary if you don't. so you are bound to miss some if you attempt to play all. ie you will levelup faster then you can finish them all.

So if this achievement don't unlock toggle the map modes until you find the race(s) you missed.