Rate the following argument fragment on its writing, argument, and language skills:
Concluding Statement: Safety and efficiency are a few of the reasons why autonomous cars should continue to be reseached and developed. Many automoble manufacters are already producing mostly independent driving cars and soon they will become common place. By 2020 most major car producers plan to have a autonomous car model. That is not to say that everyone needs to have a self-driving, but those who do purchase one of these vehicles will not only help themselves, but they will also help others and the world around them.

Score: 2