BERLIN (Bloomberg) -- Porsche SE plans to present a coupe version of its 918 Spyder at the Detroit auto show next week as the sports-car maker returns to the event after four years, two people with knowledge of the matter said.
The two-seater vehicle will be a concept race car with a V8 engine relying on about 600 horsepower, said the people, who asked not to be identified before a Jan. 10 presentation.
The car will be based on the same platform as the 918 Spyder hybrid, a model that soars to 100 km (62 miles) an hour in 3.2 seconds and costs about 500,000 euros ($670,000) in Germany, the people said.
Porsche approved limited production of the 918 Spyder last July. Next week's premiere may not include pricing details as the coupe version isn't a serial model, they said.
Porsche, which is merging with Volkswagen AG, will expand its four model lines with a goal of doubling annual sales to as many as 150,000 vehicles by 2014.
The carmaker agreed in November to develop a compact sport- utility vehicle called Cajun alongside its 911, Boxster, Cayenne and Panamera series.
Porsche declined to comment on its Detroit plans. In a Dec. 27 press release, the company said its Detroit premiere will be broadcast live on www.porsche.com/detroit.
U.S. deliveries increased 21 percent last month to 2,567 cars and SUVs, extending the full-year gain in Porsche's biggest market to 29 percent for a total of 25,320 vehicles, the company said Tuesday.