The figures were released to coincide with the first customer-bound example rolling through the assembly station this week.
But in concert with a lightweight electric motor, the combined output rises to 673kW.
The headline figures are impressive, especially when you consider the P1 tips the scales at just over 1360kg.
The P1 is McLaren’s third model in the range and is capable of pushing to 300km/h in just 16.5 seconds. By comparison, that's 5.5 seconds quicker than the celebrated naturally aspirated V12-powered McLaren F1.
The British supercar's German rival, the Porsche 918 Spyder, is just as quick to 100km/h, with the P1 two-tenths quicker to 200km/h and a staggering 6.5 seconds faster to 300km/h. Its Italian competitor, however, the LaFerrari, mirrors the P1 until 300km/h where the Ferrari hits the mark 1.5sec sooner.
Top speed is electronically limited to 350km/h.
Despite its ballistic performance, the McLaren P1 still returns a claimed 8.3L/100km, with CO
emissions of 194g/km.
The electric motor provides a range of 11km in full electric mode with zero emissions.
The braking figures for the P1 are as jaw dropping as its acceleration times.
Packaged with a bespoke Akebono carbon ceramic braking system, the McLaren can go from 100km/h to standstill in a distance of just 30.2 metres.
As previously reported by CarAdvice, the McLaren P1 will likely cost about $1.8 to 1.9 million in Australia, in base specification and including local taxes.