I have a 2004 silver CLK 320 which is technically my mom's (I'm 15 and only have a permit, "my" car is a 1991 300E which I hardly ever drive because once I got a taste of my mom's CLK's acceleration, I haven't stopped thinking about it lol) so anyways, I have been saving up my money since I was a kid to buy a car and I have about $9,000 USD in my bank account and my dad promised me that how ever much I saved up he would double it but I'm not going to count on that, so for about $10,000 what can be done to an '04 CLK? remembering that I live in California....also, I do not want to put a spoiler or body kit on this car unless I can get one that looks just like the AMG one and I get someone to professionally install it to make it look like it belongs there! other than that I'd be interested in engine upgrades mostly, ECU, even a turbo or super charger would be sweet though I wonder, would adding a turbo or supercharger make the car sound vastly different? I REALLY like the exhaust note when its nearing the redline

so thats about it, anyone got any suggestions for me? I have AT LEAST 6 months before I'm given custody of the car from my parents (lol) so I have nothing but time to think about this, thanks in advance.