Template:F1 season/doc

Infobox to be placed at the top of F1 season summary articles.

Parameters

 * previous – only needs to be populated if the desired value is not year-1 (e.g. for 1950, when the previous season is "none")
 * next – only needs to be populated if the desired value is not year+1
 * champions – this is deliberately a single, "free-form" parameter, rather than having separate parameters for Drivers' and Constructors' champions, for maximum flexibility, e.g. the names of the titles have changed through the years; from 1950 to 1957 there was no Constructors' Champion; in 1987, in addition to the WDC and WCC, there were also Jim Clark and Colin Chapman trophies, etc.