So I thought it was my tires, got me new tires. Still there is noticeable shaking in the rear section of the car once you go over 75mph. Then I thought it might be my wheels, took it to a wheel straightening shop, while they were some adjustments they made, the car still shakes from the back. It is very smooth before the 75mph, but after that speed up till 85mph it shakes noticeably. Anybody else has experienced this phenomenon ? I will appreciate it insight anyone else has in regards to this ? Can it be my control arms ? Bushings ? I had this issue on my 2001 740i at 55mph from the front of the car. Can it be a similar situation ? Anyone else has experienced this ? My car 2013 P85+ with staggered rims. 25K miles. Daily driver.