Details of HSV's upcoming Gen-F range have surfaced online today, with a broken embargo smashing open the scheduled May 15 announcement.
Among the details is confirmation of reports that the new GTS flagship will be powered by a version of the Camaro ZL1's supercharged 6.2 LSA V8 engine, producing 430kW and 740Nm of torque.
HSV's new powerhouse hero will also get big aluminium six-piston front brakes with track-ready discs, while a new torque-vectoring rear differential will work to keep the big sedan in check.
The 'regular' end of the new HSV Gen-F range will continue with the current 317kW/550Nm 6.2 LS3, while R8 models - Maloo ute and Clubsport sedan - will get power upped to 325kW.
A sub-GTS 'SV' package will also be offered, giving buyers a boost to 340kW an 570Nm.
The news means HSV fans will have a couple of options for staring down their FPV rivals, with the hero GT R-SPEC offering a still-impressive 335kW and 575Nm.
Performance details for the new HSV range remain a secret for now, although it is likely the GTS will offer a 0-100km/h time better than the strictly-unofficial 4.5 second sprint applied to the GT R-SPEC.
Those figures should make the new GTS the performance bargain-buy of the century, with a price tag of around $95,000 expected.
Watch for more details to come - officially - later this month.