In which field I have to go for designing tremendous cars.....?
You can opt for automotive engineering course if you are interested in designing cars.
You can check the top colleges below for this course
Government
Indian Institute of Technology Madras
Delhi Technological University, Delhi
National Institute of Technology Warangal
Private
Manipal Institute of Technology, Manipal
Amrita School of Engineering, Coimbatore
Lovely Professional University, Phagwara
PSG College of Technology, Coimbatore
Good Luck!!