About the C4 Lightweight:
Built by the Porsche customer sports department in Weissach, run by Le Mans winner Juergen Barth, built for the kind of guy who would have driven an old Carrera RSR or 934 at club events; the Carrera 4 Lightweight is a very rare car.
Except for the lightened cooling fan, it is in effect the RS powerplant. There is no muffler, to say nothing of a catalyst, though, so 300 bhp is probably a more accurate figure.
The transmission is the same as used in the old Paris-Dakar rally cars; with its extremely short ratios, it's good for only 130 mph. on the center console are two knurled aluminum knobs that control the torque split of the center and rear differentials, so the driver can set just the amount of classic over steer he wants.
The Lightweight gets most of the RS suspension pieces, and the wheels are 7 and 9x16 inch aluminum pieces. The steering is power assisted, as on the stock Carrera 4.
The braking system gets added attention; dual master cylinders with a balance bar permit fine-tuning of the brake bias.
Side windows are plexiglass panels with sliding vents. The street mirrors are replaced by the familiar racing items set into the corners of the quarter windows. The only additional clue on the car's exterior is the kill switch sprouting from the cowl.
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