I haven't seen it discussed but if it has, sorry if I missed it. With the engine sharing the same space as the cabin, will there be a temp increase? If not, how is the hot air exhausted?

 

No issue keeping comfortable temperature. If any, I noticed this freezing weekend I needed to turn it up more than in my Cayenne.

 

It has airconditioning.

 

But using AC takes off 5hp.

 

The engine is not sharing the same space...just the top part of the intake system, which is either plastic or CF, so not very good heat conductors. Air is being drown from the outside through that intake system so any heat that does make it to that section is cooled by the air ingested by the engine. It's also all sealed so heat rising from the engine wont get into the cabin.
While moving, the lower air intakes will feed outside air to the engine compartment and those still have fans to maintain proper airflow when not moving or at low speeds.

 

Why would you spec AC in a track exclusive car?

 

Using the A/C cools the intake system....instant cold air system and get back 10HP!
I'm joking of course!

 

Probably the same reason Porsche puts AC in the clubsport, an actual track exclusive car.

 

Gotcha, thanks!

 

I've found on long trips it get a little stuffy inside. I just crack the window open or use AC

 

Just saw the specs on that car and I feel more confused than ever. 18" wheels with steel brakes and 5 lug. I thought PCCB with wider wheels and center lock would be the way to go for the track.

 

Because even GT3 cars have airconditioning.

 

Probably has mostly to do with more wider variety of slicks available at 18, the wheels being lighter is just a bonus. Clubsports have wider wheels up front but can't run more than 10.5 at 18'' diameter because of toe link clearance. Personally if given the choice I would take 5 lugs over centerlocks any day on a street driven car.

 

As already mentioned the Clubsports run slicks and 18" wheels provides a good selection of sizes and brands.....you wont find any in 20"
Also, about the PCCB myth of superior performance....a well setup steel brake system will work exactly (or even better) than OEM PCCBs which provide very little brake pad choice and extremely high replacement costs.
They do weight less and no dust....so I would consider these a better choice for the street than the track

 

Agreed 1000%