The Crossley 40 hp was introduced in 1906. The number made is not known. Before 1919 chassis numbers were not segregated by model type and are in the range up to 2445. The last cars are thought to have been made in 1910.
Many, probably most, cars were supplied in chassis only form to independent coach builders. In 1906 the chassis was listed at £500.
1909 crossley 40hp side-view
info from crossley motors