Porsche looks set to launch a more extreme, track-focused derivative of the Panamera saloon.
The most hardcore derivative to date has been the 760bhp Turbo S E-Hybrid, which still closely resembles the standard 348bhp Panamera despite the high output of its V8-centered PHEV powertrain.
But new prototypes caught by Autocar spy photographers reveal that something more hardcore is in the works, which could possibly take the Turbo GT badge.
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