 It was intended solely as a styling exercise and never went into production.The Birusa uses the Z8's aluminum chassis, as well as its 4.9-liter DOHC V8 engine that produces at 6600 rpm and of torque mated to a 6-speed manual transmission.It features power assisted, roof hinged carbon fibre gull-wing doors, as well as a custom Bose sound system designed especially for the Birusa with 11 speakers and 2 subwoofers.