Hi want to buy me a s350 and want to ask if the price is so ok and what you should pay attention to when buying * Sliding lift roof electric, glass version * 7-G-Tronic automatic transmission * Parktronic * comfort seats front * ski bag * steering wheel heatable * seat electrically adjustable in the rear * memory package for seats front * young stars vehicle * automatic transmission * servo closure for doors * rear deck release * ambient lighting * seat heating in the rear * TV tuner analog/digit al * DVD changer 6x * Surround sound system (harman cardon) * Wooden trim in root nut * Bi-Xenon headlights with active cornering light * Burglary theft warning system * Comand APS * Comfort headrests in the rear * NECK-PRO comfort headrests in the front * Mobile phone in the armrest * Double cupholder front * Asher/smoker package * Locker system with infrared remote control * Washer system heated * AIRMATIC Air suspension * Tempomat * Airbag for driver and passenger * Paramet er-Lenkung * Side airbags * ESP 48,000 km run price 39.890 EUR First registration: 12/2006 and how much watt has the system 400 or 600?