Steering/Handling of 2013 BMW X5's Sports Activity with 20's

[Mdavidthomas]

Looking for some advice/experience here.

I have a 2013 BMW X5 Sports Activity with 20" rims. Bridgestone Runflats. The ride and steering is awful. The vehicle tracks ruts badly and seems to steer based on the crown of the road. I know the profile of the tire is extremely small and I am thinking of going with the a set of 19" wheels and tires. I love the look of the 214's but the drive is not what I expected out of a BMW. Note: This is my first and I have have owned it a little over 1 year and about 20,000 miles.

Any suggestions would be greatly appreciated.

mdavidthomas