Whilst driving car today I experienced a strange noise (sounds llke a bong, like a sping in a hollow drum) when going over a hole or bump in the road or cornering hard to the left. I can imagine all mechanics laughing at the description however its a noise I've never heard before in any vehicle. Car has a careful 40,000 , 52 plate 180k. The exhaust appears to be ok however I've only had a quick look. Car drives fine and handling seems ok. I would be grateful if anyone can shed any light on this type of noise. Thanks for all who took the time to read.