The spider has the same structural stiffness as the coupé primarily because the carbon monocell chassis was designed without a roof.
Mclaren 650s spider roof.
The mclaren 650s spider s dihedral doors bring drama and aerodynamic efficiency its stunning all led headlamps help to save fuel and its retractable hardtop roof has been painstakingly engineered to minimise weight and maintain an excellent centre of gravity.
Mclaren 650s spider with roof closed first announced in february 2014 the 650s spider is a convertible version of the 650s.
Even more remarkable our obsessive engineers ensured that the spider s drag increase is minimal at only 3 with the roof down.