Hi All,

Just curious if anyone has an idea what this noise might be. I have a 2000 M Roadster, and when I have some weight in the trunk (like luggage), someone sitting in the passenger seat, and I really get on the accelerator from a stop (1st to 2nd gear) there is a loud clunk in the rear. It is especially bad if I'm on a bit of an incline.

I thought it might be the rear shock mounts and shocks, but I just replaced them with Ground Control RSMs and Bilstein Heavy Duty shocks. The car does not do it without the added weight. Also, I have inspected the subframe and differential mounts and there is no apparent damage.

Any thoughts would be greatly appreciated.

Thanks, Jerry