I don't think there's any way of turning back the hybrid hypercars. Being hybrid just gives them too much of a power advantage. All hypercars in the future will have self recharge 500+hp electric with a ~1000hp petrol.
I don't know how well Regera no-gearbox works, for normal day cruising, I'm sure it's capable. For full on performance on track, there'll be trouble.
For one is, the car doesn't have 1800hp. Because it has maximum electric power at lower speeds. And it has maximum petrol power at higher speeds.
Given that the rev line is 8000rpm, 250mph. 125mph would be 4000rpm, 62mph would be 2000rpm.
At 500kw electric output, the battery would run out in 60 seconds. Once there's not enough electric power, the Petrol engine will start to lag like crazy.
I don't think this car has a chance in beating the 918 at the Ring. I think it should have gotten a proper gear box, and split the electric power to both front and back.
It would be much heavier like 1850kg, but it would have nearly 2x as much power as the original veyron. And if it were a "cruiser" that would be the ultimate cruiser, and like the Veyron, will blow every super car away at the drag strip