I pulled my car into my garage today and the front tires made a noise like air was coming out but the rear tires made a clunking noise. I'm not as woried about the front tires as i am about the rear tires. Does that noise mean i need new springs? I just had the car inspected so i can't imagine the springs are gone but maybe you can tell me something i don't know. And if they are gone does anyone know where i could find a sport suspension pack for my '97 A6 or if you think its worth it to put a sport suspension system on it. Thanks