Sure, McLaren may have ended P1 production last year, but this doesn't mean the hybrid hypercar is less impressive than it was when it made its debut back at the 2013 Geneva Motor Show.
As for the 650S, now that the McLaren line-up also packs the terrifyingly fast 675LT and the don't-call-me-baby 570S, we can consider this the standard for the brand.
The civil war seen here consists of a half-mile run that took place on an airfield runway. As a result, the drivers could unleash the full potential of the vehicles without having to worry about the deceleration phase that followed the battle.
Interestingly enough, the dusty starting surface meant the P1 couldn't use its advantage over the 650S, so expect an interesting first part of the footage. This should serve as a reminder of just how different real world conditions can be when compared to the specs we all know.
At a certain point, you'll notice the GoPro angle on the P1 changing dramatically. No, there wasn't any issue with the camera's mount. That was the effect of the P1's massive rear wing playing with the aerodynamics of the car.
Remember folks - we're talking about a supercar that delivers 641 hp (that's 650 PS) going up against a hybrid hypercar that allows its driver to control 903 hp (make that 916 PS).
Oh, and in case you're wondering what McLaren is doing while customers race their cars, you can check out the company's CES concept here.