This Scalextric digital C7006 In-Car Microprocessor module will convert any NON digital and NON Digital Plug Ready (DPR) cars into full digital capability. The Scalextric digital C7006 module is specifically designed to fit the Scalextric saloon and GT car range. If space is a premium in your saloon or GT car then the C7005 In-Car Microprocessor module designed to fit the single seater cars can be used.