Should I put a car sunshade inside or outside the windscreen UK?

For optimal protection, a car sunshade should be placed inside the windscreen. This is the standard and most effective method in the UK, as it blocks heat and UV rays directly where they enter the cabin. External sunshades are less common due to wind interference, theft risk, and potential damage to paintwork.

1. Heat reduction: Internal shades reflect sunlight back out, reducing cabin temperatures by up to 20°C.
2. UV protection: They prevent dashboard and upholstery fading by blocking 99% of UV rays.
3. Convenience: Foldable designs (like those for a Ford Focus or Vauxhall Corsa) store easily in the glovebox.
4. Safety: External shades can detach in wind or obscure registration plates, risking fines.

For extreme heat, combine an internal shade with window tints or parking in shade.

For UK drivers, car sunshades should always be placed inside the windscreen to prevent theft or being blown away by strong winds. Popular UK models like the Vauxhall Corsa, Ford Fiesta, and MINI Cooper all benefit from internal sunshade placement for optimal heat reflection and security.

How to use different types of car sunshades in the UK:

1. Suction cup aluminium foil sunshades: Fully expand the shade and attach using the suction cups on your windscreen
2. Magnetic sunshades: Position the magnets on either side of your windscreen, then stretch and attach the shade between them

Quality UK-approved sunshades from brands like Silver Screen or Covercraft effectively reflect sunlight while being easy to fold and store. For maximum effectiveness, ensure the reflective side (usually silver) faces outward when installed inside your vehicle.