Parry-Williams was the P1’s chief designer. He says: “When we kicked off the project properly in 2009, we thought about hybrid and thought: ‘This makes no sense because it’s going to make the car slower, not faster, so we’ll abandon the idea.' And then we could see there was this groundswell of interest in hybrids and so on, and the [Porsche] 918 was launched very early, and we thought about it some more.”
Given that McLaren is those important words – a technology company – there was no turning back. In the 12C, McLaren had already relaunched with a downsized, turbo V8 engine. It knew LaFerrari, Ferrari’s equivalent hypercar, would come with a large-capacity V12 engine and that McLaren didn’t have its own variant. The P1’s hybrid path was set.
“At the time, we were working with Mercedes in F1, so we had a very close relationship with the guys at Brixworth [Mercedes F1’s engine plant],” says Parry-Williams. “We went to talk to them and, of course, there was no supply chain that would give us the power-to-weight ratio we needed to make a system earn its keep on the car and not make the car slower. At the time, a Toyota Prius motor could produce 1.4kW/kg. The motor in the F1 car was 15kW/kg after just one year’s development, so we thought there’s quite a lot to go at here but we’re going to have to do our own parts because the hybrid parts [used by] the industry are so immature. So we had to do our own engine, our own power electronics, our own battery…”
And so it did. And in 2013, the P1 arrived with a relatively small-capacity (3.8-litre) twin-turbo V8 engine making 727bhp, augmented by a 176bhp electric motor – which came in mostly to fill in lag from the big turbos – but produced a total of 903bhp and 664lb ft. While Porsche and Ferrari have also had hybrid hypercars, nothing like this has before, or since, rolled out of the doors at Sant’Agata Bolognese.
Which is not to be too critical of Lamborghini, mind. As m’colleague Prosser says, adding turbochargers and batteries to Lamborghini’s magnificent V12 is not going to improve it one jot. McLaren is a technology company. Lamborghini deals in other things: old-school charm; in-yer-face powertrain histrionics. At college, the P1 is the bespectacled, front-of-class swot notching up A grade after A grade. The Aventador sits further back, makes more noise, garners more attention and wilfully gathers a crowd so it can tell them how great it is, how athletic it is. It just happens that the P1 is better at sport too.
Again, that’s not a criticism of the Lamborghini. The P1 was more expensive and fewer were built. It was not – although they are coming, and soon – a full-series production hybrid McLaren. So the P1’s specialness – of production, price, ethos – allows it to be exquisitely crafted and finished.