The next-generation Porsche 911 Carrera due in summer 2004 will offer a dual-clutch transmission developed by BorgWarner, industry sources said.
In contrast to conventional transmissions, Borg-Warner's DualTronic has two multiplate clutches. One activates the first, third and fifth gear. The other works on the second, fourth and sixth gear. The technology allows gears to be shifted quickly and smoothly.
But BorgWarner, however, is not the only supplier developing dual-clutch transmissions for Porsche. Porsche has been cooperating with German supplier ZF Sachs on a similar system for about 18 months. Porsche delivers the gearbox and ZF Sachs supplies the wet-clutch and clutch and the software for automation of the transmission.
The first ZF Sachs test drives were in December. Testing of a second model was recently completed.