The Bertone Jet features aluminium body panels shaped by hand and carbon fibre body work. The car also features a panoramic sunroof made entirely of glass and folding rear seats. A roof dimming system was said to have been in development as well as electric folding rear seats. The headroom is improved at the rear seats due to the car's shooting brake body style but the legroom remains the same because the engineers and designers did not want to change the overall proportions of the donor car. The car's mechanical components remain unchanged and it utilises the same 5.9-litre V12 engine found in a Rapide while having the same weight at 1,990 kg (4,387 lb).

The rear lights are similar to the Vanquish and a small integrated rear spoiler is installed to improve aerodynamics.