Jettison 1's cockpit has been designed for adjustability to suit any driver, while retaining simple components. Seat fit can be modified using foam pads cut to appropriate sizes and the pedal box has a large range of fore-aft adjustment.

The car is controlled using a two-pedal layout: right pedal for accelerator and left pedal for brake. This allows for the option of using left foot braking as employed by many professional racing drivers. The clutch is actuated by a hand lever within easy reach behind the steering wheel. Gearshifts are made using a sequential shifter operated by the left hand.

Instrumentation includes engine speed and coolant temperature, with warning lights for neutral position, oil pressure and charging system.