McLaren’s hot, new 675LT is a higher-performance variant of the 650S, and the LT portion of its name is derived from the wild 1997 F1 GT «Longtail» homologation special. That rare McLaren menaced the road with radically lengthened bodywork, racy aerodynamics, and a better power-to-weight ratio than the car on which it was based. The 675LT has two of those things, but its tail? Quite vestigial, we’d say.