DiRT: Colin McRae Off-Road Cheats - Xbox 360

Achievements
Complete each achievement to get the allotted gamerscore:

10 Wins (15) - Win a total of 10 races in any game mode.
20 Wins (20) - Win a total of 20 races in any game mode.
4WD Rally Veteran (20) - Win all 4WD Rally events in career mode.
5 Wins (10) - Win a total of 5 races in any game mode.
All Tracks (20) - All Tracks.
Champion of Champions Winner (20) - Win the Champion of Champions event in career mode.
Classic Rally Veteran (20) - Win all Classic Rally events in career mode.
CORR Pro 4 Truck Veteran (20) - Win all CORR Pro 4 Truck events in career mode.
CORR Super Buggy Veteran (20) - Win all CORR Super Buggy events in career mode.
Crossover Veteran (20) - Win all Crossover events in career mode.
Driven in excess of 100 miles (5) - Drive a total of 100 miles in career mode.
Driven in excess of 1000 miles (25) - Drive a total of 1000 miles in career mode.
Driven in excess of 250 miles (10) - Drive a total of 250 miles in career mode.
Driven in excess of 500 miles (20) - Drive a total of 500 miles in career mode.
European Rally Champion (25) - Win the European Rally Championship.
First 20m Jump (15) - First 20m Jump.
First Clean Race (15) - First Clean Race.
First Podium Finish (15) - Achieve a podium finish in any game mode.
First Victory (15) - Win a race in any game mode.
First Xbox Live Clean Race (20) - First Xbox Live Clean Race.
First Xbox Live Hill Climb Win (20) - First Xbox Live Hill Climb Win.
First Xbox Live Rally Win (20) - First Xbox Live Rally Win.
FWD Rally Veteran (20) - Win all FWD Rally events in career mode.
Global Rally Champion (60) - Win the Global Rally Championship.
Hat Trick - 3 Wins In A Row (15) - Win 3 races in a row in any game mode.
Hill Climb Big Rig Veteran (20) - Win all Hill Climb Big Rig events in career mode.
Hill Climb Veteran (20) - Win all Hill Climb events in career mode.
International Rally Champion (40) - Win the International Rally Championship.
Manual Transmission (10) - Manual Transmission.
Maximum Career Points Milestone (45) - Achieve maximum points up to the end of Tier 11 in career mode.
National Rally Veteran (20) - Win all National Rally events in career mode.
Own 15 Vehicles (15) - Own 15 vehicles in career mode.
Own 30Vehicles (30) - Own 30 vehicles in career mode.
Own All Vehicles (45) - Own all of the vehicles in career mode.
Rally Raid T1 Veteran (20) - Win all Rally Raid T1 events in career mode.
Rally Raid T4 Truck Veteran (20) - Win all Rally Raid T4 Truck events in career mode.
Rallycross Veteran (20) - Win all Rallycross events in career mode.
RWD Rally Veteran (20) - Win all RWD Rally events in career mode.
Tier 2 Career Points Milestone (10) - Achieve maximum points up to the end of Tier 2 in career mode.
Tier 4 Career Points Milestone (10) - Achieve maximum points up to the end of Tier 4 in career mode.
Tier 6 Career Points Milestone (20) - Achieve maximum points up to the end of Tier 6 in career mode.
Tier 8 Career Points Milestone (20) - Achieve maximum points up to the end of Tier 8 in career mode.
Top Speed (10) - Top Speed.
Win Arai Japanese Alpine Rally (20) - Win the Arai Japanese Alpine Rally in Championship mode.
Win BP Ultimate Rally UK (20) - Win the BP Ultimate Rally UK in Championship mode.
Win Brembo Rallye Italia (20) - Win the Brembo Rallye Italia in Championship mode.
Win Rally Deutschland (20) - Win the Rally Deutschland in Championship mode.
Win Shell Rally Australia (20) - Win Shell Rally Australia.
Win Sparco Rally Espana (20) - Win Sparco Rally Espana.

Unlock Colin McRae R4 Bonus Car
Finish in first place in all 66 events to get a 100% completion.

Unlock Ending videos
Finish in first place in all 66 events to get a 100% completion to unlock two ending video sequence.

Unlock CORR Rallys
When doing the CORR Rallys, if the race has a bend first, wait until the other cars have gone then accelerate. This will get you out of the pile up at the first corner.

Unlock Acceleration
Accelerate about halfway down at the beginning. When you are familiar with all tracks, accelerate hard on the straights and brake a good time in advance before a turn.

Cornering
Brake early, then increase the speed carefully when exiting a corner. In races where there are multiple opponents such as Rally Raid or CORR, position on left side if next turn is a left turn and vice versa. This will give you a much better chance of exiting a corner first or block your opponents from overtaking.

Increasing speed
To increase your maximum speed (stats), go for Hill Climb, Windy Point A, which is almost a long straight with some turns. Try using the Toyota Tacoma.
To increase your average speed (stats), go for Hill Climb, Pikes Peak C (or BC) with a Toyota Tacoma.

Selecting a car
When choosing a car, look for torque rather than hp/tons. A high torque can overpower a car with more horsepower. The second best car is often more easy to handle than the most powerful one. You will often get cars as prizes. Try use them to the maximum before buying a new one (for example, if you do not win after ten attempts).