Good job bro. I do not have this car but I am buying a used 2018 m4 convertible as my weekend warrior against my mechanic brother's advice and just in case the top fails one day, I wanted to have an idea. I already watched the videos to that car but yours came up as a suggestion. It's a similar process with a few exceptions due to hardtop. You did a great job. Respect!
Thank you very much,,,,look that is a brilliant car regardless of model, so if you go for 2018 model i think is a good choice as it will have more features than mine as you see mine is 2006 model,i wanted to buy hard top but i chose soft top because our roads in South Africa are not well maintained so i can't say much about hard top,,all i can say follow your heart and good luck. 😀....
