Great review here of the awesome Porsche 911 GT3 RS. Check it out!
So it’s a Porsche 911 GT3 that’s even more extreme?
Oh yes. The 3.8 flat-six – up from 3.6-litres in the previous 997 RS – produces 444bhp at 7900rpm, an increase of 15bhp (at 300rpm higher) over the GT3. That means 117bhp/litre, and while the torque output of 317lb ft is unchanged, it too is produced at higher revs.
And what an engine. It chunters at idle, like a mechanic has left a few bolts in each cylinder, but clears its throat as the revs rise. There’s a glorious resonance through the cabin between 4 and 5000rpm, and after that the note gets louder and harder, and an aggressive howl drives you to thrash it to 8000rpm over and over. It’s a proper race-bred engine, and quite why the GT2 RS needs another 167bhp we can’t imagine.