Worst experience with my first BMW 320i from SMG

I am writing to express my strong dissatisfaction with my BMW 320i that I purchased last year in 2014 from SMG Pietermaritzburg. This car was brand new and if there was a way of returning it, I WOULD, because of all the issues I have with it.<br> <br> Firstly, I had a problem with a DriveShaft malfunction, I took it to BMW SMG, I was told it only needed a software update. After that, in the middle of driving, my engine blew, and oil spilt all over the road on the highway, luckily, there were no other cars and I managed to manoeuvre to the side of the road. They towed it to BMW Springfield, who told me, 1 of the pistons shot out and created a hole in my engine, never been seen. Now my passenger seat won't move forward/back, the lever is not working. <br> <br> This morning as I started my car, I received a Steering wheel malfunction and have taken it to BMW SMG PMB AGAIN, all before its first service. They told me my engine cables have been damaged by rats, I have to pay for the negligence. I DO NOT have any rats in my garage/office or droppings from them. If this vehicle is from a bad batch, can someone advise, I am tired of the mistreatment and fault with it. I regret buying this vehicle from BMW