The styling of the two front wheel and single rear-wheeled Avion is based on the pre-war Morgan three-wheeler racing cars.

It uses Citroën 2CV mechanical parts and engine mounted on a steel chassis of Blackjack's own design, all housed in an open-top doorless fibreglass body.

[1] The Zero is a more performance-oriented car than the Avion, with which it shares its three-wheeled front-wheel drive layout.

Introduced in 2005, it was initially powered by a VW Beetle air-cooled engine.

[2] A 2009 review published in The Telegraph praises the "elegant practicality and the production-quality finish" of the Zero.