Twice in the past couple of weeks I've seen an unmarked titanium grey Dodge Charger on 270, in the area between Highway 40 and Olive. Both times I saw it, it was mid-afternoon. It has a black push bar on the front bumper and IIRC it might have tinted windows on the back half of the car. The first time I was southbound and my X50 gave a few strong, short KA signals, apparently he was running brief IO. It was heavy, fast traffic and he passed me on the right to nail a minivan before I even spotted him a couple lanes over. He nailed the guy with radar from behind. He looked like he's taking a pretty aggressive approach to enforcement.