When it comes to the very specific confluence of track-focused but (technically) street-legal McLaren hypercars, the new Senna is justifiably getting the lion’s share of attention these days. But it’s not the only one.

Just look at this car here. It’s a P1 GTR that’s been converted, as a handful of them have, to road spec. It’s showroom fresh, and it can be yours – for the right price.

The P1 is a rarer beast than the Senna, with a production of just 375 units compared to the latter’s projected 500. Only 58 were made in track-focused GTR spec, and even fewer were converted for road duty. So that makes this a much, much rarer proposition.

Another distinguishing trait of the earlier Ultimate Series model to the newer one is its powertrain. The P1 packed a 3.8-liter twin-turbo V8 with hybrid electric assist teaming up to produce 903 horsepower in standard spec, or 986 in the GTR.

The Senna, by comparison, uses a larger, 4.0-liter version of the V8 tuned to deliver 789 hp, but it partially makes up for the deficit with a good 660 fewer pounds of weight.

At the end of the day, though, there’s no getting around the fact that the P1 GTR is the faster car, at least on a straight line. It’s quoted to take just 2.4 seconds to reach 60, on its way to a top speed of 225 mph, while the Senna reaches 62 in 2.8 and tops out at 211. Then again, McLaren claims that the Senna has it beaten on cornering speeds

Nor is there any getting around the price, on the other hand. Where the Senna costs about $1 million, the P1 GTR sold new for $1.8 m (if you opted out of the accompanying track program). Then there was the cost of having Lanzante Motorsport convert it to street spec. And while this example doesn’t have a price tag disclosed, something tells us that the Seven Car Lounge that’s listed it for sale in Saudi Arabia will take a healthy premium over what it cost new.

So, money no object, as is surely is the case for whomever faces such a dilemma, which would you rather have: the Senna or the P1 GTR?