The future is here with interconnected computers on four wheels - connected cars! Just like regular computers in networks, there is also a huge amount of cybersecurity challenges regarding vehicles. With the large amount of data transmitted between vehicles and other devices, a proper way of securing the connections is important. It is clear that the connected components and technologies in modern cars have a large amount of vulnerable points, and more research is needed for further studies. Several modern vehicle technologies such as electrical control units, over the air updates and lidar radars etc are discussed in this work. The most prominent way of securing the stored personal data and the constant flow of transmitted data is encryption, and with the use of blockchains. There are also suggestions on different types of new framework and standards to lock in an even keel for the cybersecurity environment. This work investigates the passive vulnerabilities existing in these connected vehicles systems.There will be a mapping of the most prominent and relevant surfaces vulnerable to for example cyber attacks. This will take the form of a literature study with thematic analysis. Scientific articles will be searched for in databases to find relevant data to code into different themes, answering the research question. The work aims to look at different sources describing ways of implementing cryptographic blockchains in order to achieve the level of security necessary. There will also be some proposals of future frameworks, and to put in standards to secure the future of vehicle cybersecurity. The purpose of this work is to gain a wide view of how the connected vehicles landscape looks like in the form of vulnerabilities, and how we could negate them in the future.