The Opel Performance Center (OPC) presented an ultra-sporty concept car based on the Vectra GTS at the 2003 Essen Motorshow. Featuring innovative twin-turbochargers, the 1.9-liter diesel produces 212 bhp and peak torque of more than 400 Nm from as low as 1400 rpm. With this engine the Vectra OPC needs no more than 6.4 seconds to sprint from zero to 60 mph. Top speed is limited electronically to 155 mph, while fuel consumption in the European test cycle is only six liters per 62 miles. With this powerful yet economical, high-performance common-rail injection engine, Opel demonstrates again its diesel expertise.
The Vectra concept car, developed by OPC and based on the GTS sport sedan, is powered by a new development of the 1.9 turbo-diesel available early next year in the Vectra and the Signum. While the standard 1.9 CDTI ECOTEC develops 150 bhp, the twin-turbo version increases this to 212 bhp and therefore has a higher specific power output than the V12 6.0-liter gasoline engine in the Ferrari Enzo. The Italian supercar develops 110 bhp per liter, the Opel Vectra OPC´s twin-turbo engine produces 112 bhp per liter.
Two electronically controlled turbochargers, with maximum boost-pressure of 3.0 bar, are key to the improved performance, enabling the 1.9-liter twin-turbo to drive as smoothly as a naturally-aspirated, large-displacement engine. Peak torque of more than 295 lbs-ft is available all the way up the engine-speed range from 1400 to 3500 rpm. Apart from the considerable power increase, one of the advantages of the twin-turbo principle is the engine’s low fuel consumption.