What can cause a faster-moving vehicle to suddenly swerve on a dry, straight road?

The combination of factors that can cause a faster-moving vehicle to swerve includes gusts of wind and a tyre blow-out.

Gusts of wind can unexpectedly push against a vehicle, particularly larger ones that have a larger surface area, leading to a loss of control. This is relevant in the context of German traffic regulations, which emphasize the driver's responsibility to maintain control of the vehicle under various conditions.

A tyre blow-out results in sudden loss of pressure in a tyre, which can dramatically affect the vehicle's stability and steering, potentially causing it to swerve. This can place the driver and others on the road in danger, reinforcing the importance of regular vehicle maintenance and checks as mandated by traffic regulations.

Continuous headwind, while potentially impacting speed and vehicle handling, does not generally cause sudden swerving like the other two factors, which is why it's not included in the correct combination. Understanding these dynamics is crucial for safe driving and adherence to German traffic rules.