Granted, they are both in the age group least likely to vote, but Mr Cole is studying politics. Over at Waterloo Taxis, the owner, Charles Lonsdale, 72, was fairly sure that it had something to do with farmers' subsidies, while Simon Field, 29, manager of a carpet shop, thought it would mean the death of the pound. This may be tricky...Sarah Calzert, 18, didn't know there would be a referendum, let alone what the outcome might mean for Britain.David Cole, a 21-year-old student at Leeds Metropolitan University, was equally nonplussed when it came to identifying what the treaty would actually do. Waterloo, Huddersfield Waterloo, Huddersfield Can you name one thing the constitution will change?If the Prime Minister is going to have any chance of winning a referendum on the European constitution his first task will be explaining to the public what it is actually about. If you buy a car which runs at 20mpg, you're already much more heavily penalised by vehicle excise duty and fuel costs."UNDER THREATFive cars facing £900 a year in road taxVW Sharan 2.0SCost: £17,495MPG: 29.1CO2 emissions: 230gm per kmCurrent Vehicle Excise Duty: £165Range Rover Sport 4.4 V8Cost: £45,000MPG: 18.9CO2 emissions: 352gm per kmCurrent VED: £165Ford Galaxy 2.3LXCost: £15,553MPG: 28CO2 emissions: 242gm per kmCurrent VED: £165Volvo V70 2.4SECost: £26,478MPG: 30.7CO2 emissions: 220gm per kmCurrent VED: £165Mercedes E240 ClassicCost: £28,930MPG: 27.4CO2 emissions: 247gm per kmCurrent VED: £165. Motorists who drive fuel-hungry BMWs, people carriers and Range Rovers face a five-fold increase in road tax under radical plans to combat Britain's spiralling greenhouse gas emissions. If you're flying with a non-EU airline, or not starting or finishing your journey at an EU airport, your rights are governed by the Montreal Convention.

This offers very limited protection, warns a spokesman for the ATUC. "Many airlines will provide refreshments or overnight accommodation for passengers whose flights have been cancelled or are subject to a long delay," he says."But very few of them will voluntarily pay compensation in addition - any payment that an airline is prepared to make for a delay will, at the best, be reimbursement of expenses that it accepts were directly and necessarily incurred.". It has the power to take airlines to the Civil Aviation Authority, which can fine rule-breakers.However, these are European Union rules. For more straightforward delays, travellers also have basic rights. For flights of up to 930 miles that are delayed by more than two hours, you should get meals and refreshments "in relation to waiting time" plus two free phone calls.The same applies to three-hour delays on flights of 930-2,100 miles, and for four-hour delays on longer flights. On all flights delayed by more than five hours you're entitled to the same treatment, plus a full refund of your ticket if you choose not to fly.