Quote: "1. Overtaking is a very difficult thing, because the other cars are too unpredictable - they move from side to side for no apparent reason."
I did that to simulate a real driver dirty moves to prevent overtaking. I could insert an option to add or remove that ("nasty AI" or something), since I like this kind of AI movement but some of my friends find, as you did, these moves annoying.
Quote: "2. The collision area is very large - if you get within about 6 feet of a vehicle you hit it."
You mean in side to side collision, I think. Yes, that needs to be fixed.
Quote: "But all in all, it's a very good game. And it's a complete game! That puts you in the top 1% of coders here!"
Thanks!

Indeed this is my 8th full game completed in DB, so I should be in the top 0,1% really!
BTW: would you consider to insert a review or an article about Used Cars Arena in the next TGC Newsletter? That would be awesome!