The torque converter on the ZF 8 speed has a lock up piston assembly that engages and locks up (in other words bypasses) the torque converter once the car in motion. In some applications the ZF 8 speed uses a mutli-plate wet clutch assembly rather than a torque converter. Once the car is underway gear changes among the 8 gears are made by 4 gear sets and 5 shift elements (3 clutches and 2 brakes) and the torque converter is not involved.
That being said I also would not purchase a G8X without a test drive.
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Drivers Club at Lime Rock - International Motorsports Research Center - Society of Automotive Historians - Madison Avenue Sports Car Driving and Chowder Society (0nly a VP) - BMWCCA - Porsche Club of America - M Gruppe - Polish Race Drivers of America (PDRA) - Glen Club (Watkins Glen International) - Jaguar Club of Southern New England
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