heartfordshire had a few modded escos so they could chase bikes/cars on fields!!!!!!!
harder alloys, slightly higher suspension, no front splitter/hockey sticks etc
northumbria had a few esc cos and 4x4 saff marked persuit cars.
you can se them if you watch blues and two`s on UK Gold etc

saffys have nice trims and esc cos`s are fookin flyers!!!!! Sure the escos`s are on greens