At what age can I drive a licence-free car in Switzerland?

From age 18 in Switzerland, regardless of the vehicle's size. A light quadricycle limited to 45 km/h falls under the special category F, for which the minimum age is 18.

A higher minimum age than elsewhere in Europe

What the general public calls a "licence-free car" - a light quadricycle whose maximum speed by design does not exceed 45 km/h - falls in Switzerland under the special category F, like the other non-agricultural light vehicles in this category. See quad licence for the details of the two quad categories.

Switzerland's minimum age of 18 contrasts with markedly more permissive neighbouring countries: in France, a model such as the Citroën Ami can be driven from age 14, and from age 15 in Germany. A Swiss resident cannot take advantage of these lower thresholds by importing such a vehicle: the applicable road admission rules are those of the country where the vehicle is driven, not those of the country of purchase.