Good concept, processing disappointed

The basic concept I find great. Cops or gangsters. Man chooses which side to drive, then the vehicles that "fight" extensions, the entire game system set up quasi.
But the game is just plain disappointing. It feels unfinished! If you drive only to NPC, the game is still liquid, but as soon as one another (human) player comes close, the game starts to falter.
It is almost impossible to catch opposing players, because they simply jump through the screen and you can not even estimate where you have to drive to it similar to Ramm
Just disappointing!
Only program ready to play, then publish, EA!