The pocket-rocket prototype has a turbocharged 999cc 3-cylinder with 115hp of Up-rated power and 200Nm of Up-rated torque, sent to Up-sized 17-inch alloy wheels through a 6-speed manual gearbox.
Torque took the McLaren 720S for a spin around Rome and the Vallelunga Circuit. Here are the five things we grew to love about the British carmaker's latest creation.