So when the game first released there was a money glitch that gave you unlimited money. I don't know if this would be allowed in the Career Mode speedrun or not but here it is: NOTE: You must delete the cache for the game to remove any updates and then go from there.

Very similar to Forza Horizon 2's money glitch on 360 - We can certainly look into making a Glitchless category to separate it.

There is also this buy locked cars glitch you can do too:

With the money glitch you can easily get the fastest cars in the game for nothing and it breaks progression so quickly.

all kind of glitchs are allowed under the career any% glitched cat. a longer clarified ruleset is currently in works and will be attached as a google doc link soon.

glitches dont matter for the other cats as they work like all races and not any% runs

tbh the biggest hurdle of full career categories is the driver level. Even with the best cars all game you would still have to earn 7 million credits throughout the run. since the best payouts come from categories without a lot of wiggle room in the car you use, these glitches alone (with no way of skipping driver level restrictions) would maybe save 2- 3 hours out of a like 50 hour category. Worth the time save but still not a very appealing category to run

Yeah the Career Any% would be a multiple part Speedrun. I'd hate to think how long the Career 100% would take O.o