The case against the current Porsche 911 GT3 is that it is too good. The controls are too precise, the chassis too composed, the engine too willing — it conceals how fast it is going and how close to its limits you are, which means you can arrive at speeds that require considerable competence to manage without having received adequate warning that they were approaching. This is not a criticism that would survive scrutiny in court, but it is the honest assessment of what makes the GT3 different from sports cars that communicate their limits more generously.