Opposite experience here. Had a bright BMW sports model, and then when moving to a dark family vehicle from a manufacturer without this reputation people treat me totally different. Anecdotally I don’t drive any different, still speed as fast as the conditions allow on clear highways or go with the flow of traffic, even if that flow is +15mph over. However I got pulled over by the police for speeding about quarterly in the BMW, and have not been pulled over a single time in more than five years in my new car. Wild.