Mercedes Benz Sprinter Tractari Auto

can you convert it for GTA IV?

Yes ,but with credits.

where can i find the dacia logan crashed version?

U can't find it is not for download or published to the net.

1080p/60FPS, Post Effects, Speed and Crash Test:
https://www.youtube.com/watch?v=WVbxnl2WTbY

Anyone can use the video link on other sites : )
Here you can buy the cheapest - every games:
https://www.g2a.com/r/thebestshop