"A road safety charity has warned motorists that glare from the sun creates more dangers than driving at night or in bad weather.  From the UK, the Institute of Advanced Motorists (IAM), Neil Greig, IAM director of policy and research, said: ''We can't change the position of the sun, or the need to travel at certain times, but there are simple steps you can take to ensure you're prepared for these conditions.

''Keep your windscreen clean, both inside and out. On de-mist, your heater blows traffic fumes, suspended oil and smoke onto the inside of the screen, and wet roads add dirt and scratches to the outside."

It also helps to invest in a good pair of sunglasses.