The XK Signature is a special version of the XK with the V8 engine tuned to 385 horsepower along with 20-inch Kalimnos alloy wheels (optional 20-inch Takoba), diamond-quilted leather upholstery, Canvas Suede cloth headlining, Figured Ebony veneers, leather seat in Ivory or Charcoal, reversing camera, metal sports pedals.