I have some answers to commonly asked questions. If I have missed any please feel free to add.
Q: How Long Does It Take To Get the Full 1000?
A: 7-12 hours depending if you use postcard guide. Thanks Razzleson: http://www.xbox360achievements.org/f...ad.php?t=11842
Q: I can't find any of the postcards. plz help!
A: Razzleson has a postcard guide. Just read it.
Q: I have no dots on my map after Sheriff's challenge. What do I do?
A: On the same road as the Sheriff's Challenge, keep going out until you're asked to leave radiator springs. Leave and you will be in a new area.
Q: Do cheats not let me get achievements?
A: You should be able to unlock achievements using cheats.
Q: I can't seem to win anything. Any tips?
A: Seems like everyone's biggest tip is to use the unlimited boost cheat which is: "Vrooooom"
Q: I've played half of the game and no achievements. What's going on?
A: Make sure you're playing adult version and not the kiddie version.
Not a question but more of a time saving tip by mike21278:
"For those of you that are looking to save time and hating the drive from radiator springs out to the outer lying areas and back, if you hit the back button, you can warp to any even already completed. This is useful for when going to rust bucket o rama and back."