Interesting find PH....
The slanted radar head makes me think these are for static use only, but maybe not...i mean Audi S4??? It would prove that the police fleet managers are sadists...they force coppers to drive around in volvos and opels, yet they have to sit still in a beast like that..
Not to mention, the radar head is worth around 20000CHF, the whole system as much as the car. And the way it points through the grill, looks like it has ears.