go to any marble factory, tiles show room, sentry shop, etc ask them,i can buy a ravi for your shop, can you give me space & customers, if thay ask yes go 4 ravi, form raiv you can earn maximum, 2nd buy a mehran in white color use as taxi+home use+some time you send it to daily rent or long distance passengers, 3rd option is bolan , to send bolan on hiring is not a easy job + on shifts at the end of month you get nothing, due to high petrol price n poor students n working ppl, n if you only want to do school/college/university duty then no one bolan/ravi/mehran can help you now days