A car of mass \(m\) travels along a flat, unbanked horizontal road and navigates a circular turn of radius \(R\) at the maximum speed possible without skidding.

On dry pavement, the coefficient of static friction between the tires and the road is \(\mu_{\text{dry}} = 0.80\), while on wet pavement, it is reduced to \(\mu_{\text{wet}} = 0.20\).

What is the ratio \(\dfrac{v_{\text{dry}}}{v_{\text{wet}}}\) of the maximum speed the car can round the turn on dry pavement to that on wet pavement?