stuff is still getting added and the game is gonna keep progressing. itll never be as easy to just pick up and drive tho, like forza or gt. it's unforgiving and part of it's charm is that if you don't take the race seriously and pay attention the whole time you could lose the race from a split second lapse in judgment. personally i dont think drifting belongs in a racing game because its not racing. sideways will never be the fastest way around a track. you can tune your car to make it more capable of drifting tho. i don't really understand the forza lap times comment.
professional drivers have gotten within hundreths of a second of their actual lap times on courses they know in pcars. a number of them use it to practice for actual races. rene rast, ben collins (og stig), etc. forza is like easy mode on skate and pcars is hardcore mode. no railmagnetism, etc.
edit: you should check out their forums. see some other peoples opinions of the game. there's a bunch of people with all different views on the game and what should be included. i think theres gonna be an oval course/stock car dlc eventually, as well as other things planned for the future.
http://forum.projectcarsgame.com/forum.php