No one rests on their laurels. The buzz created by Ford when it showed the GT supercar at the 2015 North American International Auto Show has worn off—heck, having a Detroit auto show in January is already history.

Even if you're a supercar that instantly sold out in 2017 with enough orders to fill two years of production, you have to stay fresh and relevant. Ford Performance answers that call with 13 additional horsepower for 2020, improved cooling, a chance to order the carbon-fiber body unpainted or with an updated Gulf Racing appearance package to pay homage to the 1968 Le Mans-winning GT40.

The 3.5-liter Ecoboost twin-turbo V-6 engine now generates a cool 660 horsepower, and engineers also tweaked the calibration to give it a broader torque band. The car has gallery-cooled pistons and higher-energy ignition coils, as well, all adapted from the GT MkII limited-edition, track-only version. Cooling is always a challenge, so new buttress air ducts are designed to increase airflow by 50 percent and the car has larger intercoolers to keep things somewhat chillier. For more fun, the suspension has been fiddled with for better handling and body control while on the track. And you will hear the 2020 Ford GT coming with standard titanium exhaust from Akrapovič that elicits a deeper, more resonant note. Bonus: It's nine pounds lighter.

Ford has played with exposed carbon fiber before with the GT. The Carbon Fiber Series introduced in late 2018 substituted gloss for paint on the stripes, A-pillars and lower body panels, while the cabin received a matte carbon-fiber, center console, sills and other pieces of trim. But the new Liquid Carbon edition goes further with everything exposed, wearing nothing but clearcoat over the sexy weave. It comes with standard carbon-fiber wheels, as well. It can be further customized with titanium lugnuts, six-point racing harness anchors, and a choice of five interior options and five caliper colors. Want a stripe? You can order the dual center stripes offered on the standard Ford GT or the single stripe found on the Carbon Series. Finish the look with painted mirror caps. It's all a la carte. But expect to pay about $750,000 if you are one of the ones in line for the new look GT that will start deliveries in the spring.

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The other new look for 2020 is an update to the Gulf Oil paint scheme with a black pinstripe between the famous blue and orange. Oh, and the number changes from 9 on the 2019 model to 6 (from the Le Mans winner).

GT production began in December 2016. Originally, Ford planned to limit the run to 500 cars, but to meet greater than expected demand, the decision was made to increase production to 1,350 through 2022. The cars are assembled by Multimatic, the Canadian carbon-fiber and racing specialist, in Markham, Ontario. Only 141 cars were made in the first year; production then grew to 250 a year. Of the four or five vehicles a week Multimatic churns out, one can be a special model.

Ford says it will continue to make the updated 2020 Ford GT into 2022. Base models run about $500,000.