First of all you need to identify whether there is a vacant post in that particular company or not there for it is very difficult to go through the website and check for vacant post therefore first of all you need to make an account into job listing sites such as monster naukri.com  or LinkedIn in there you can identify the vacant post in various automobile companies and you can also check the eligibility criteria for applying the post so if you are able to meet the eligibility criteria then you can apply for the job recently FB is also launched the similar option there for you can also you can search for jobs through Facebook.