Asalam O alykum... well nice question, i drove for complete 24 hourse 3 days back. started from umerkot sind till Lahore. started at 1230 noon on 2nd Feb 2010 and reached lahore askari 10 at 1225 noon on 3rd...i did it cuz of compulsion..but i tell you its terrible..i had to take a sleep of 10 hourse to come back to m,y sences..i was the only driver of the car and a heel lot of heavy traffic. i had to cross half of the trucks from laft side because they are not going to give you the way..anyway i dont want to repeat the experience its a learning ,,,,,you can trust me not to check that youself. 