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They knew things about cars that I never wanted to know about, such as torque ratio and the differences between rack and pinion steering vs. worm and roller.
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Another distinguishing feature is the speed-sensitive power steering with rack-and-pinion steering gear: the power assistance is implemented electrohydraulically rather than just hydraulically.
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Other advances included rubber cone independent suspension, designed by Alex Moulton (who incidentally, went on to design the Moulton bicycle -- another of my favorite designs), rack and pinion steering and a monocoque body that eliminated the need for a costly separate chassis.
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It also benefits from excellent rack-and-pinion steering--again, fine-tuned for this car--that's on the lighter side of sporty.
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Yes, it does have an electrically assisted rack-and-pinion steering, and no, the steering isn't the telepathic rudder that the Porsche 911's is, but still, it's pretty awesome.
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