An old dictum says, "Form follows function." Since this idea has been conceptualized in the late 19th century, it has become a basic rule among designers, whatever field they may be into. Auto designers follow this simple philosophy as well; thus, fast and high performance sports cars have aerodynamic body and Sport Utilities and other off-road vehicles have muscular and robust appearance and hard wearing auto parts. These vehicles' exterior and components are designed according to the driving activities for which they are fitted and used.
Some auto parts have more than one function. Among these is the grill or grille -
