in nfs pro street don't have free mode
No, sorry.
No, there is no 'Explore' mode as the game consists of closed circuit races.
'unlockall things on the code entry on the career mode
no you canot drive around the city
yes, in the career mode there is an option where you can "free roam" the city of seacrest.
all you have to do is beat Ryo (i think)
downloading need for speed pro street would be unlegal, if you mean the full version. Demo version is free to download, for example, from here:http://www.gamershell.com/download_21822.shtml
hey do some googleng
Need for speed carbon was made before need for speed pro street.
No you can't sorry the best you can do is race in a Race track by yourself
Street
how to get police car mode