Laconia Drophead, nicknamed "Bluebell" In the 2020 television adaptation of Agatha Christie's The Pale Horse the character played by Rufus Sewell drives a 3-Litre drophead coupé. In the 1954 movie Profile the character played by John Bentley drove a 3 lite drophead. References 4. See the web-site: www.DB-Lagonda.com 3-Litre Cars introduced in 1953