Tulliallan Police College had a Ford ST200 demo in white with leather rear seats and cloth fronts.
The instructors found me examining it in a car park because I worked for a FoMoCo company at the time and didn't know the white ones existed.
I was then invited to the college and had a very interesting evening getting a demo drive in a traffic car, a shot on the Comparator skid car, and a demo of anti-hijack/terrorism driving with j-turns and stuff.