50 hours a week spread over x5 days of about 10 hours. Turning over around £30 an hour for around £1500 per week. 48 weeks over the year for an annual turnover of a bit over 70k. Rented vehicle is £180 per week over 50 weeks, so deduct 9k. Couple hundred a week on fuel and a tad more for valeting, etc to leave a pre-tax profit of around 50k.