One year after the fed­er­al government’s Cash for Clunk­ers stim­u­lus pro­gram, the Paragon Auto Group is launch­ing its own ver­sion. Cash for Clunk­ers II will offer cus­tomers up to $3,800 in trade-in val­ue when buy­ing a new or used car that gets bet­ter gas mileage than the trade-in.