Key to Aston Martin Valkyrie Spider's spine-tingling performance is its ultra-lightweight construction and high downforce aerodynamics package. But it had to look good too. The upper body surfaces of the teardrop-shaped cockpit and lower tub contours follow the envelope of space between the huge full-length Venturi tunnels that run either side of the cockpit floor. They draw vast quantities of air beneath the car to feed the rear diffuser, generating colossal levels of downforce. While that's crucial to Aston Martin Valkyrie Spider's prodigious performance, the tunnels also keep the upper body surfaces free from additional aerodynamic devices that would spoil the purity of the legendary open top styling. Looks, after all, are everything.