Scalextric C3644 McLaren P1 Yellow Street Version Slot Car (1:32 Scale) Digital Plug Ready- Takes Scalextric C8515 Digital plug for easy upgrade to race on Scalextric Digital Layouts PCR Ready, Pro Chassis Ready, is a brand new concept from Scalextric that allows racers to install and run performance racing parts from Slot. It. C8533 is the Pro Chassis needed for the McLaren P1 to convert the car to Slot. It parts Car is High Detail Easy change braid with magnatraction Compatible with all 1:32nd Scale Analog Slot Car Race Tracks