With the beginning of the gangster era, one thing was certain.  There weren't any cars to speak of for Agents to utilize in their efforts.  It wasn't uncommon to seize vehicles of those arrested or utilize vehicles left behind during crime sprees, shootouts and more. 

Here, Purvis plans to put to use one of the vehicles left behind at the Little Bohemia shootout.  You'll note the costs of the day to get into running condition.