as a beginner should I use a car rig addon or a manual rigging method? which ever is helpful for my skills and knowledge please suggest.
Welcome to BA!
As a beginner, I would say start with a tutorial on a simple rig like turn front wheels and rotating when moved… and learn the rigging principle first ( as well as some of the other properties and how to use Blender along the way…)
Once you have tried it manually, then you will have a better understanding of how to do it with an add-on, without a basic knowledge of rigging, then when the addon fails you will know how to fix it, or at least, how to ask the correct question to get help!
Happy Blending!
Thankyou For Helping out also can you recommend me a tutorial regarding the same as there are many on youtube.
Sure…it helps if you search >YouTube Blender Car Rigging for beginners <
That will narrow down the search…
Once, Again Thankyou Very Much.