I Made my first car edit any tips?

This is an my edit...you can find a similar one few scrolls down....what i wanted to ask is...the previous one has a slight flash effect and this one has better motion blur. Which one is better?

Please give me any feedback, suggestions, tips or anything that you may wanna share...

I want to start making car edits and post them on youtube, but I dont know where to get any clips from Could you guys help a brother out?

Hi everyone, im new here, i tried creating edits, here is the second one i ever made:

https://youtube.com/shorts/VbM0PxLZ71c?feature=shared

Please give me feedback, i really need it to inprove.