I have a smart Car issue. I was hit by a car last December. I had all the repairs done to it, but I noticed a “crinkly” sound coming from the engine. It only happens when I accelerate. Now, this only happens after I leave it sit for a day or two or more. However, this sound goes away after I have driven it above 35 MPH (70 KMPH). I really need some help to tell the smart Dealer what is wrong with my car, because I had it looked at two times by a local Chevy dealership and one time by the smart Dealership, and they both couldn’t replicate the noise. HELP! Thanks for you time reading this, and I wish you the best of luck trying to figure it out!!!