Sometimes when driving my Coupe, I find myself watching the rear view mirror more than out the front windscreen. This is usually because I notice the vehicle following is engaged in some sort of animated conversation with a passenger, or texting, or anything other that paying attention to driving conditions. I get nervous when I apply my right hand turn and I think about the dim, inadequate, E9 taillights that do not alert many behind as to the intentions of the Coupe in front. So, I have taken to using hand signals on many occasions. I know what they mean, probably all reading this know what a raised left arm pointing upwards means, but it is pretty much a "crap shoot" to expect today's drivers to actually understand the signal being relayed to them. I cannot tell you how many times I have done this, only to find that the driver behind is completely taken by surprise, is angry, and blames me for some sort of abrupt and unexpected braking so that I can complete the turn safely. Anyone else care to comment? Mike