Automobile Engineering is a branch of engineering that deals with designing, manufacturing and operating automobiles. It incorporate elements of mechanical, electrical, software and safety engineering as applied to design and manufacture buses, bikes, trucks and other vehicles and machines.
Hence you can go for this option.
But ya i will also advice you to go for Mechanical Engineerin rather than Automobile because automobile is a subpart or Mechanical. There you will get to learn even extra and it will also provide you with some extra job opportunities.