I bought a new Mazda BT 50 SP. In the first talks with the sales person I was promised free insurance, but suddenly later on there was no free insurance. After some days she came back and said they had one car with free insurance. So I bought that car. I inspected the car and it looked nice and new. After three month I looked underneath the car and could see the carrying Iron was corroded. There was also corrosion at the aluminium wheels. The car had only been driven around 1500 km at high way. The case was reported to Mazda who refused to do the repair and change the alu wheels. I am suspicious that the car has been standing at Mazda for a long time before I bought it, but it has not been possible to get Mazda to inform when it was received at their place. Does anyone have any idea what to do.