Almost
always American in make. If any
UMP is
Japanese or
European, it has probably been impounded, failed to meet reserve at
police auction, contains
illegal engine parts, or otherwise did not make it back into the civilian
private sector.
In North Carolina, I have heard
Lisence Plates being prefixed with HWP, or another similiar acronym. Being an inexperienced driver, have seen only one or two of these. Permanent plates may also be a dead give-away.
Large,
obtrusive antennas, protuding from the trunk should carry a red flag at the tip. Cell phone reception aids are common among civilian vehicles, and should not carry much weight.
I've heard rumours that the lights are of different configuration, most likely to fit strobes in.
Also check for things like
children in the passenger seat, or
political bumper stickers. These will usually brand a civilian.
Riceboy mods, which generally attract attention, aren't usually found on
UMPs.
Watch for these, and
campers behind overpasses.
According to
Error404, The
vancouver police department, in an effort to crack down on street racing, has purchased one acura integra, complete with light kits, body mods, and "sponsor" stickers. basically a
riceboy cop.
According to
littlerubberfeet, the
arizona police have a
ferarri...but it is mainly used for
D.A.R.E. education, and painted as such