vinyl flooring/carpet - sound deadening/heat sheild options?

[Funstuie]

hey all,

Another Q from me. Currently, my 76 has crappy, torn, disgusting carpet installed. I am going to rip it out and I was thinking of going with vinyl as it will be easier to clean and maintain. I will have to take out all the original bitumen as it's knackered and broken.

Having a look at options available most of the carpets have extra thick backing as an option but the vinyl doesn't. So what are you guys putting under the vinyl?

I am looking to keep it cheapish so I am thinking of peal and seal but is that enough? Should I look for an additional top layer?