Ah but..
Treinreiswinkel: A small piece has been saved from the wreckage of Autoslaaptrein. A Dusseldorf to Verona overnight motorail train operated on Friday nights southbound and Saturdays nights northbound from July to August 2015 and in 2016 it'll operate for a longer season, 20 May to 24 September, see
www.treinreiswinkel.nl/autotrein/italie/dusseldorf-bolzano. Düsseldorf is a 3 hour 45 minute drive from Calais, or just a 2 hours 30 minute drive from Hoek van Holland, Rotterdam or IJmuiden where the ferries from Harwich, Hull & Newcastle arrive.