回複：Air suspension 可以調軟硬。如果一定要不顛的車，買個Ford或Chevy足夠了。

not sure about x5 but we have a 528 xDrive and there has never been an issue when I was commuting 70 miles one way everyday. The seat should have a lot of dimensions for adjustments and you should be able to find a comfortable setting. Not too sure about pasengers however.