Car phone signal booster help

[Small Car]

It seems the last mildly related thread was 2013 but I might be wrong.

I do a big commute out to the sticks and spend the whole journey on calls. It gets pretty crap towards the end. What can I do? I have googled a load and it appears boosters range from £100 to 400 and I am confused. Money not the issue - good signal is!

Has anyone got this? Help. Just voice, not data. I am on EE.

Thanks.

[Small Car]

Interesting! Thanks. Annoying you can get 4G in deepest darkest Wales and patchy signal on some main A roads!