Our Chaparral 360 IBL came with the West Lake tires. When we were looking at the 5er on the lot, it had mud on the front end, the salesman said because it came out of their overflow lot which was muddy (we had recently had a lot of rain so we didn't really question that). I know it was probably towed from the factory to the DFW area. Had to be towed from a muddy overflow lot to the dealer (probably not far?) And it had to be towed 75 miles to our storage facility by the dealer, of which about 50 was highway travel. Our son had warned us about the china bomb tires and told us to get them changed before we were 10 miles down the road and we thought he was exaggerating...we promised to get them changed before our first trip. But the 5er came to the storage with a flat tire. Driver said that other drivers were signaling him about the flat tire just down the road from our storage place. Not sure HOW far away but at least it didn't happen on the highway. Service that came to change it said the sidewall was cracked. Now was the tire EVER properly inflated? Was it checked before it hit the road and during PDI? Did the driver hit a curb? Was it just a bad tire? Who knows. But we will be changing out all the tires and still trying to talk DH into getting a tire monitor system. Pic of the 5er being pulled into storage with a flat tire. This could have been so much worse!!