We all know that nobody wants to grind this dead game for 10.000 races to get the fame related achievements. So I've done a zip with three save files that will allow you to get "God of All Gods", "Force of Creation" & "The 42" (you need 5, 10 and 50 million fame respectively to get them).

In order to get the achievement, select the files from the folder of the one you want to achieve (5m, 10m or 50m) and paste them into this folder: C:\ProgramData\Remedy\Death Rally\1.0\Profiles.

Afterwards, open the game, play and finish any race and you'll get the achievement!

The files (replace the [dot] with actual dots):
https://www[dot]mediafire[dot]com/file/36ku9m2coiir9mr/death_rally_career.rar/file

Also a tip about "Armed to the Teeth": if you're having trouble getting it, even if you unlocked and upgraded all weapons, what you need to do is play challenges. After completing some story mission races you'll get challenges while selecting races.

Keep note of which ones you've completed (that is, won the race while the challenge was active) because the game doesn't tell you. If you want to select a different challenge, just change to the story tab and then back to races and the challenge will be different.

After completing several that's how the achievement unlocked for me.