My car has developed a knocking noise. my first thought was drive shafts but they seem ok the noise is worst at about 50 -70 mph and seems to have got louder, it sounds like it is comming from the wheels but i cant see anything wrong with them. A mate of mine had a quick look yestreday but couldn't find anything but he did say the drivers side wheel bearing was making a little noise!!! could this be knocking under weight or can you think of any other ideas?? Cheers guys Rob