Mine shakes when braking, but not driving. No passengers can feel, I can just feel it in my steering wheel. I had my BM guy look at it and he feels it isnt an issue and that the brake discs may be slightly warped and at high speeds the shake is exaggerated due to the motion.
I guess if it is happening without brakes it may be balancing or tyres.
Has the car ever had a bump against a kerb? that may have mis-alligned one of the wheels.
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