Starting in the mid-1990s, the famous coffee company 'KIMBO' carried out an advertising campaign on several FS rolling stock, including some ALn 668 series 3000 and 3300, customising the sides and heads with the company logo and a slogan, together with a large image of a coffee cup.
The ALn 668 railcars were among the first to receive such advertising, initially with a red background covering the entire bodyshell and with large white lettering, later joined by a similar one with a white background and extended to other rolling stock.