We do. Or used to. Enforcement seems fairly lax out West.
Time for a Brit to jump in here I think.
Vehicle enforcement here has become a bit of a joke in the UK. The roads are full of (usually) young idiots tearing around in lowered BWMs. That's the chav's car of choice, sometimes a Mercedes if they really think they're it, and an Audi if they're trying to be a bit different. Usually, it's fully tinted windows on the front (illegal) and a bean can exhaust (also illegal) which can be heard across the valley when they tear it up.
When it comes to lamps, extra LEDs are the order of the day, and you see lots of people driving with fog lamps on (that's lamps mounted
below the front bumper) which is illegal unless there is fog. The fog can be as thick as custard but you won't see a rear fog lamp (that's an extra-bright red lamp on the back) coming on, unless there's a spot of rain in which case they all come on and then annoy you by reflecting off the wet road.
You are unlikely to get challenged on anything unless involved in an RTI (Road Traffic Incident). Used to be called an RTA (Accident) until the police decided that "accident" could imply no-blame, therefore it became an incident. If you're caught you get given a notice to repair the vehicle and submit within 7 days, but only if it's truly horrendous enough to be obviously dangerous will they tow it. A bald tyre would count as dangerous, but they too are way more common than they should be.
You just take the note to your uncle who runs a garage, and he signs the notice for you. He's the same guy that passes all the MOTs despite the exhausts, windows and other stuff.
Long gone are the days when a proper copper in a white cap stopped you and said "Now then... what do we have here, sir?" smiling menacingly before impounding your motor.
As for headlamps, people are actually pretty courteous, and usually dip their lights. But I notice a real difference driving the Range Rover versus the wife's mini, where modern LED lights can be really quite annoying. One of the great joys of a high driving position.