An ultra-specific two keyword domain name. If you operate a taxi service in Monaco you will not find better. Visitors to Monaco need look no further than MonacoTaxi.com for all their transfer requirements.
A simple website linked from this domain name could increase your market share considerably and in turn, increase revenue. Present a professional image to potential customers before they even arrive. Provide details of your fleet of vehicles, levels of service offered and those all important booking numbers.