Website seems to be little boring, you must create eye catching because its all about cars, so need to be more attractive.
Don't write in a language you have no ability in! Indonesia is a huge country, write in your own language and you'll get better retention because people will be able to understand what you write. Better retention = more ad clicks which is what you are after, right?
Looks very simple and neat but if you can make it an attractive then it would look great. Add your logo on the header section. Add your social icons on the website. If you can making the user review option about your website then it will be good to making your website look better. Best luck!
What's the point of doing all that if the content is so appalling that no visitor will stay let alone return?
These all helping the site to look an attractive but the content is the soul to any of the blog to driving the visitors to the website. Hope the OP will be concentrating on the quality contents.