I have had friends make money in taxi business. But a full-time arrangement works best. Many taxi company 'outsource' their fleet these days. Jatco,and even the small companies do so. Every company has its own rates,but i am told that new cars fetch you 40K per month and older ones e.g. KAY and below would fetch you 30K and less per month. Also,toyotas are preffered. Nissans are less of a preference. You would be suprised how well Vitzs are catching up in the taxi business,the guzzle less are good on profits. You do need a stable insurance policy though,and a genuine tracking system on your car! Ask around around,its a biz worth doing. All the best!