As noted above, California's stricter emissions requirements ruled out the sale of 360 V8-equipped vehicles, and no exception was made for law enforcement agencies, which were forced to use the inadequate 318 V8, even though it was equipped with a 4-barrel carburator. A fully loaded Dodge St. Regis pursuit car with this engine struggled to reach and proved nearly useless except for police vehicles used in city areas. But after the R-body line was dropped in 1982 and Chrysler switched over to the smaller M-body Dodge Diplomat for police use, the 318 V8 proved sufficient.