Mounting of engines in car

Most of the modern cars have engines mounted "Transverse" which is suitable for front-wheel drive?---
Some cars still have "longitudinal mounted and real-wheel drive".
What is the criteria for choosing between them? Design and space in front, size of car and fuel-efficiency in case of Front wheel drive?/

Longevity of the tranny components and less stress on the box.The box and tranny are inline with each other and not working at 90 degrees.

ok lets close this thread. Thx

No need to close this thread buddy. infact we dont close threads as soon as the question by the thread starter is solved. some other member may have some other query on the same topic!