CAR (UK) - - Sports Car Giant Test -

The prin­ci­ple of rear­wheel steer­ing – that’s the me­chan­i­cal sys­tem rather the gor­geously sub­tle state of power-over­steer – is sim­ple, and the on-pa­per beneƒits nice to have. The GT R is the ƒirst pro­duc­tion AMG with the sys­tem, and be­low 62mph the rear wheels turn in the op­po­site di­rec­tion to the fronts, help­ing the car turn tighter and mon­ster twisty roads and race­tracks. Such a set-up would be im­pos­si­bly ner­vous at speed, so be­yond 62mph the rear wheels turn in the same di­rec­tion as the fronts, eˆec­tively length­en­ing the car’s wheel­base and cre­at­ing a sta­bil­ity that breeds conƒidence at speed.

All well and good but the re­al­ity can be odd, with the sys­tem com­ing be­tween car and driver to cor­rupt your in­tu­itive un­der­stand­ing of what the thing’s do­ing, and how it might be­have at any given mo­ment. At its worst, rearsteer­ing breeds a per­va­sive ner­vous­ness that haunts your ev­ery move – step for­ward the Fer­rari F12 tdf. But just as Fer­rari evolved the sys­tem to cre­ate the far more to­gether 812 Su­per­fast, so Porsche’s 911 GT3 proves it can be all but im­per­cep­ti­ble, work­ing its magic to shrink the car in tight go­ing with­out spoil­ing that all-im­por­tant sense of con­nec­tion.

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