Tuning your car abroad – registration?

Good day, My question concerns legal regulations regarding car tuning. I'm asking for serious, non-accusatory answers, as I'm not familiar with the subject. I want to tune a classic car registered in Germany (H-license plate) abroad (outside of the EU) by having a body kit installed. I don't think the vehicle's dimensions will change, as…

Buy a used BMW M5?

Is it worth buying a used BMW M5 with 150,000 km, or is it not a good idea due to the high mileage? I'm considering buying one, of course used, as the price is otherwise incredibly high. With 150,000 km on the odometer, it's obviously been through a lot. How much can you actually get…