This is really weird, but I will try to describe as best I can and see if anyone has any ideas

I was driving down a narrow lane this morning in the Brecon Beacons at about 15mph when all of a sudden there was this load banging noise. I think that the best way I can describe this is that it was as if someone was beating the roof of the car with a baseball bat!! Fearing some massive mechanical failure, I quickly pulled over and stopped. Looked under and around the car and nothing obvious. Got back in and moved a few feet and it started again. Stopped, got out and repeated.
A farmer came out to see if I needed help. I explained what was going on so he suggested I move the car and he would observe from outside. He said "I think it is coming from inside the car". We repeated with the windows down and both concluded that we thought the noise was coming from the car's speakers. On one occasion this happened when we were both outside the car with the ignition and engine off!!
Anyway, I decided that I would return the couple of miles to where I ma based and sort it from there. Got back in the car and drove off and nothing!! It's like nothing ever happened!! Everything appears normal!!

Anyone got any ideas for a possible explanation?? I am starting to doubt my own sanity!!

The only other piece of information that I can add, is that about 50 yards away, there was a man up a telegraph pole doing some work. I think they are putting in high speed broadband

Steve

It wasn’t the drum bit from Phill Collins In The Air Tonight was it

I've had similar noises from a couple of Rangie P38s. I think it's some form of feedback from the audio system.

It only happened a couple of times, once after switching off the ignition, then never again
.
That said, the man on the telegraph pole could have been producing some radio interference .

I wouldn't worry about it - it's all part of driving eccentric British engineering!

Wasn’t Phil Collins up that telegraph pole?

Thanks for the replies guys............humerous and otherwise!!

It does seem from the general lack of feedback that this is not a common occurrence. I have a vague recollection of someone reporting a while ago, some strange electrical gremlins when they passed a particular location.

I have to say, that I was quite shaken at the time, The noise was so loud and all I could think of was some catastrophic mechanical failure or that someone was physically attacking the car!!

I drove past the same spot again yesterday. No man up a pole and everything else totally normal

Steve

Yes I seem to remember someone’s sat nav going strange when he went over a bridge or something ?