Diplomatic Protection
The Diplomatic Protection Group (DPG) is a division of the Metropolitan Police (London). They are also know as SO16 and have responsibility for the protection of the diplomatic community in London. This includes protecting embassies, official residences (such as 10 Downing Street), important buildings and prominent individuals. They do not carry out ordinary police duties and this is indicated by their red vehicles.

Police - Diplomatic Protection
BX58 PMO A Met Police DPG Ford Transit minibus approaches on blue lights.
 
Police - Diplomatic Protection
BU60 BXL This is a DPG BMW 525D Touring responding to an emergency in London. It can swiftly accelerate with its three-litre diesel engine.
 
Police - Diplomatic Protection
LX06 ENR This DPG Ford Transit minibus is being transported on the back of a low loader.
The rear view of the van as it is taken to the garage for repairs.
 
Police - Diplomatic Protection
BU08 JHL This is an example of a Diplomatic Protection Mercedes Benz Vito. It is fitted with two full-width light bars on the roof. The yellow spots on all sides indicate armed officers are in the vehicle.
 
Police - Diplomatic Protection
V180 JGU This is a Mercedes Sprinter that is fitted with front and rear facing cameras. They are for automatically reading and checking vehicle registration plates. Special night-vision lights are also mounted next to the cameras so they can operate 24 hours a day.
 
Police - Diplomatic Protection
LX03 OAU is a Vauxhall Zafira used by the DPG.
 
Police - Diplomatic Protection
LX53 MXL is another Zafira used by the DPG. This photograph shows us the high visibility markings on the rear of the car.
 
Police - Diplomatic Protection
LV02 SYU is a Ford Transit Tourneo used by the Diplomatic Protection Group in central London.
 
Police - Diplomatic Protection
LX03 OBY is a BMW 5 series diesel also used by the DPG.
 
Police - Diplomatic Protection
LX53 LCN A police outrider talks to a colleague on foot at the entrance to Downing Street, London. The motorbike is a silver BMW R1150 RT-P is in service with the Metropolitan Police.
The side view of this silver motorbike. Notice something very rare about the rider: he has a gun attached to his belt.
A close up of the Glock gun in the photo above. The officers is attached to SO16, the Diplomatic Protection Group.
The side view of the same bike as the rider makes a U-turn on Whitehall. Notice how the minimal livery and silver colour makes the bike difficult to distinguish as a police vehicle.
 
Police - Diplomatic Protection
VU51 VHY A red Metropolitan Police Diplomatic Protection Group (DPG) Vauxhall Zafira MPV.
 
Police - Diplomatic Protection
LX03 ASZ This is one of the Metropolitan Police's diplomatic protection group (DPG) cars - a BMW 5 series.
The rear view of the same vehicle.