Jaguar’s new special edition XKR Portfolio offers even greater technology and luxury to customers seeking the ultimate sports coupe or convertible. Exterior styling revisions include 20-inch polished 5-spoke alloy wheels, polished aluminum side power vents and celestial black paint. Power comes from a 420 horsepower supercharged 4.2-liter V-8 mated to a 6-speed sequential shift transmission with shift paddles on the steering wheel. This is the first production Jaguar to use the new Bowers & Wilkins speaker system exclusively crafted for this vehicle.