Mine is the auto is250. Only had that experience after a simple minor service (15000km sevice) and a wheel alignment. Brought it back to the dealer servcie place. But they couldn't find out or repproduce the vibration.
Hi zc01,
I get that from my is250 as well. Exactly as how you describe. would you please let me know if the dealer service can fix that. Thanks. email: chichi_8899@hotmail.com