What is the correct way to clean, maintain and protect a soft-top roof?

My son has a 2017 Mini convertible, which is often left outside. What is the correct way to clean, maintain and protect the soft-top roof?

Why does my car still show marks after I wash it?

I have had a lot of time on my hands during the lockdown and decided to give the car a good clean. It's metallic black so shows up virtually any marks. No matter how careful I am, the bodywork has marks...

Protecting the paintwork on a new car - what would you recommend?

I have just bought and collected a new car. I declined their overpriced offer of paintwork protection. I recall you have recommended in the past a product from Autoglym that will give the same level of...