You thought the career mode was easy? You have no idea what's in store for you other than "it's gonna hurt"!
A lot of the people who still play this game are speedrunners, so that naturally means that they're pretty talented at the CMR games, so wouldn't it nice to be challenged by them for once? Well, let me introduce you to a mod i've made that turns Colin McRae Rally 2005 into a game on par with difficulty to DARK SOULS, and maybe even surpass it. I call it, Colin McRae Rally 0, And it changes a few things. It changes the point requirements to enter certain events, it changes the point requirements for events, it changes some of the car class types for events, but the 2 important ones to note are that you unlock the worst cars first, and the best cars are locked behind the hardest events. And most importantly, the AI is some of the hardest that the game can even handle. By the start it's not TOO bad, but I genuinely think that the 4WD Diamond Championship is quite literally on the border of being impossible. And i'm not just throwing that out as a random whatever statement. Good luck, and god bless you if you even DARE to try and 100% this.