Geezus you are as bad as him, where did you pull that stat from please?
Again, that figure is max tractive effort at peak, not possible to produce 510 Nm from 121.93 ci at 1300 RPM. The Mean Effective cylinder Pressure at that speed would need to be 665 psi, which is a ridiculous claim, 50% higher than a turbo diesel at 1300 RPM.
Take a look at the local dyno of the engine, torque is conveniently not shown, however the calculation for deriving horsepower from torque is known and simple.
View attachment 197542
Above is the result of several clinical WOT pulls overlaid, the X axis being RPM, see near 1300. The bandied torque of 510 Nm would show the dyno power curve crossing the Y axis at 70 kw.
75 kw incremental on the Y axis is easily traceable and shows a more realistic engine speed of 2600, a good result but twice as many RPM to the right as claimed.
Sure that is actual versus claimed, tyres vs flywheel.
To get actual at the wheel we can use the other odd claim of 14% drivetrain loss (versus 27% in the SS), so discounting 70 kw by 14% gives us 60 rwkw @ 1300 RPM. See the graph above, the squiggly incomprehensible mess that is left of 2500 RPM and below 50 rwkw is omitted, as typical, for the sake of clean trend lines and chart for the pool room.
Commie is speed limited to 260 in wagon and 270 in sedan. Crazy Arab types in the Middle East show stock 6.0 clocking over 300.
Regarding G6 engine evolution, you really should drive one of them after say 200k km, there are none at 300k km. Compare to GM, Nissan and Mitsi, Hyundai G6 series truly are a disposable POS and sticking a blower up it’s jacksie ain’t gonna extend its worth.