We've seen a swing from joyriders and opportunists (chavs nicking radios to swap for beer-tokens etc) ... to uber-chavs stealing parts for cars they really don't have the money to keep on the road legitimately .(swooping in to have your wheels/tyres or bumpers and headlights)..... and heavy organised gangs stealing to order ... mostly off abroad in containers.
Nasty work ... wouldn't wander out to confront them in my dressing gown ... baseball bat at the least, as there will likely to be a couple of designated hammer-wielders in the crew to keep heroes at bay!
K