OMFG. You're 16 and driving a 525i Touring???
What's your insurance cost? Over here (UK) you'd be lucky to even *get* insurance, let alone a year's insurance for less than the cost of the whole car...
When I started driving at 17 (youngest you can drive in the UK), my car was a 1.3 litre Ford Escort wagon. Four speed manual. Nothing electric aside from the heated window, heater and the radio. And that's an analogue tuner radio, not a radio/cassette, or new-fangled CD player.