The M6 toll road is policed by the cmpg, but because it is pretty quiet it doesn't get a lot of policing, hence it is known as a place to try out your fast car. There was a couple of lads got nicked last year for using it as a drag strip in the early hours, which apparently, if you look on certain motoring forums is pretty common.
Interestingly enough, and here's a little-known fact about that road, apparently, there were thousands of old Mills and Boon books used in it's construction, they were shredded and used in the sub-base or something.
Slightly off topic, but rather interesting was an incident near me a couple of years ago, I won't mention the motorway to protect the parties concerned, lol
Well,a couple of the lads I knew worked on traffic and one had bought a new motorbike, IIRC it was a Hayabusa, and he wanted to see how fast it went, they do over 180mph apparently! So he's talking to one of the other traffic lads and mentions this, so they come up with a plan to test it. There's a certain motorway near me and it's pretty quiet on a weekend, so as the lad with the bike is off shift on the Sunday, his mate suggests that they meet up around 6am, and try it out, he'll be in his police car since he's working and hopefully people will think they're testing an unmarked police bike, if there is anyone around that is.
The day arrives and from the word go it starts to unravel, the lad on shift has been given a high-performance motor, but it's unmarked, they decide to carry on however and do a run between 2 junctions, it's a warm up, speeds are only about 70mph, they go again, this time quicker, the unmarked has it's flashing headlights on and they're running about 140, all good so far, so they run again. On the final run the bike roars off, hits about 170 and the unmarked is behind it doing about 155! Then disaster, they arrive at the next junction and find the road blocked by police cars, all hell breaks loose, worst of all the inspector off traffic has turned out. It transpired that as they were hurtling up and down the motorway an old bloke on an overbridge had spotted them. He'd rung the police demanding to know why there were 2 idiots racing up and down the motorway, a bloke on a bike and some nutter behind him flashing his headlights!
Fortunately, as they were 'in the job' they weren't booked, but I believe they were taken off driving for quite a while. lol