i dont really get it either. i think ppl stole cars from the dock and you need to get them back...but *SPOILER* i dont get why you kill them later....doesnt make sense...
they ruined the series right after U2 I mean come on I have been racing for like 2 hours and I still dont get a new assignment -.-
i missed U2, where you need to ACTUALLY explore the city for new garage to unlock certain parts to be able to be bought. i remember driving through the city looking for the lights to indicate theres a garage nearby. that was amazing.