I’m window shopping, and ruminating about an upgrade to my '05 CS. I've loved it, and also known the joys of costly ownership through a short block rebuild due to scored cylinders. So I understand the maintenance costs of these P!Gs. I’m considering 2008-2011 with a preface for an ‘09/10 to keep the low range gear ratio. A 957, unless I find a well-priced 958. I wouldn’t rule out the right ’06 CTTS either, but I want something to last me another 5+ yrs.

This will be my DD plus my other toy for both autocrossing and occasional off road fun too. Priorities are in that order. So I have looked very closely at the rare Transsyberia trims I’ve seen online. I know they would be an upgrade of a few more HPs, plus the off-roading package. I don’t know if I like the look of them sticking out so much with the side graphics. And I think I really want the Turbo/S to enjoy more each and every day not just occasionally. But from what I can find online, the off road package is practically non-existent with Turbos, and the Turbo S can only use 21” wheels due to the brakes? If I have a choice, I’ll avoid the PCCBs just for cost alone, and also if that opens my options.

Based on my own off-roading experience and knfeparty’s video I know I can use any Turbo really, just add proper tires. But it’s not an “S” for that extra Porsche-good-ness

There are few points I haven’t been able to find online, or by searching here.
My questions for you guys are the followings:

I believe there is a real “turbo lag” effect which might make any Turbo a poorer choice for autocrossing than the responsive CS. I typically turn off PSM and drop to M1 at launch too. But I’ve never test driven a CTT to know first-hand yet, but is this true?

Was the off-roading package available for Turbos or for Turbo S?
If so, could it be added on by a $teelership?

If the Turbo S requires 21” rims to fit over the brake calipers, is there even an off road tire solution out there? I have two sets of wheels now, and I’ll probably will again so I’m not looking for one tire to fit all roles.

And finally, To “S” or not to “S”? That is my Turbo Question.

Thanks in advance for any advice you guys got, and for the collected wisdom I've found here.

 

A Cayenne can never have too much power, it's just so heavy. That being said, there is a limit to how much more it's worth paying for the extra power.

The 957 Turbo S can use 20" wheels as well.

 

It isn't that the turbo/turbo S is less responsive, as far as I've been able to tell, just that all the extra power the turbos provide isn't available off the line. When the g-force meter finds that you are taking a corner especially spiritedly, it will hold a lower gear for a while after you complete the corner. This keeps the RPM range right and the turbos spooled up for all kinds of 747 power out of the turns. I wouldn't hesitate (no pun intended) to go for a turbo (S) and autocross it.

 

The advanced off road package was available on the 955 turbo but I don't know if you could get it on the S. I almost bought an 05 turbo that had it and the factory external spare carrier. Ended up finding a pristine 06 CTTS during the search and bought the CTTS instead. This is a 5000 lb truck that is slightly faster from 0 to 60 than a Ferrari Testarossa. Its just an absolute blast to drive and a comfortable DD. But, the S may not be the best choice for serious off road because of the wheel size limitation.

 

The Turbo S can fit 19" wheels. PCCB ('09+) can fit 20" wheels. I've seen a handful of 955 Turbos with the Advanced Off-Road Technical Package, but I haven't seen a Turbo S with it that I can recall.

 

The Turbo S didn't always come with the PCCB's standard. I think that was added with the 958.2.

 

Not to "s" unless the price is same a a non "s".

 

Sounds to me that with your priority being autocrossing, maybe you should be looking for a GTS with PDCC (and perhaps PCCB as well)? Not a good choice/model for serious off-roading, but again it seems your primary goal is a good autocrossing choice. No?

 

I have 19" winters on my 2006 CTTS

 

If you end up finding the right 957 except for the PCCB brakes, I'll swap you the big reds off my '09 CTTS plus some cash for them, so don't let that stop you.

Turbo S comes with PDCC standard and would be a necessity for auto-crossing IMO. Sometimes you'll come across a GTS with it too, and the 957 GTS also comes with a 6MT option, which would be fun for Auto-X too.

 

That is exactly what I have observed my with my 06 CTTS. You really notice and appreciate the transmission and shift programming when you're pushing hard into and out of the corners.

 

Replacement cost for brakes are much higher with a Turbo S than a Turbo. If that doesn't matter to you, drive both and see if the added purchase price and maintenance is worth it. In my opinion, I couldn't justify the extra money for one, so went with a boring ol regular turbo.

 

Every turbo has lag, except for maybe some of the modern ones with secondary small turbos or electric spool pumps. There's just no way around the fact that a turbo at rest needs to be spun up to produce boost. Once it's spun up, of course, then there is no lag. So, off the line, you can brake boost a bit, and throttle response after that should be pretty equal to the CS since the turbos are already humming.

I would skip the off-road package on the 955. Get some AT tires and drop the pressure a bit. You can get more articulation with the hydraulic sways, but you'd need to be in some serious rock crawling situations. Situations where you should expect to be taking damage. We've had our CTT in some pretty serious off roading here in Colorado, and haven't had much issue getting around on street tires.

On the 957 and 958, the hydraulic sways are also the PDCC system. So, I would say it's worth it at that point.

I don't think it's worth it for a Turbo S if you happen to find a good Turbo. Sure, more power is great, but I think they're rare enough that finding one with the history, options, and price point you want can be tough. Plus, you'll want the option of 18" wheels if you plan on doing any serious off roading. I believe the 2008 Turbo can fit 18" wheels, but you need 19" after that. Someone has already covered the wheel sizes for the Turbo S.

 

I agree with Car Guy. If you are going to autocross consider the 957 GTS.

From autoevolution...

The Porsche Cayenne GTS represents the first time in over 10 years that the "GTS" nameplate has been used by Porsche. Technically a Cayenne for the track, the GTS is based on the S model, with improved suspension, brakes and more horsepower. Porsche themselves have said that the GTS model handles better than the much more powerful Turbo and Turbo S Cayennes.

 

The only "improvement" made to the brakes was Guards Red paint.