I wish some day I could afford it because of my BTC activity.

cars are a pretty bad investment, you could always lease or rent one instead, I wouldnt buy one with you btc cus that would defeat the purpose of investing into btc

New cars are a pretty bad investment because their value drops by 1/4 to 1/3 within the first year of buying it. If you want to be smart with your money, then buy a used car. Those don't tend to drop in value nearly as fast and sometimes you can even resell them for a profit.