As the title states, i'm working on a 992 GTS spec and curious if PDCC is a "must have".

I was looking at only adding that but RAS is also required. So not sure if the additional $5k makes sense.

Currently have a 991.2 GTS without PDCC so I can tell what its like without.. but unless I drove a 911 with it, I can't speak to the differences.

 

I heard PDCC can increase risk of getting car sick. I'm also not sure it really improves the performance of a 911. I think its a must on a top heavy car like a targa (I believe it is standard with Targa) but not sure you need it on a coupe or cab.

RAS is cheap and many like it.

 

That's an interesting comment about car sick, i'll have to look into that.

Yah, seems RAS should just come standard at this point, always added.

 

No it’s not a must-have

I do think it has positive benefits in a 911 platform, but it does add complexity and another failure point.

It’s standard on the TTS, which is a heavier, AWD car. Porsche made this choice for some reason and it’s been that way for the past few generations. I’ve never driven it on a RWD, lighter car.

It came “free” on my TTS and I thought it was interesting - the car drove flatter than I would have expected. Whatever Porsche did on that car worked, and PDCC is part of the cocktail. Even then, I don’t think that I would spend $5k to spec it on a GTS.

 

Thanks. I guess if I was doing a 4 GTS it might make more sense. First time building one, so i'm trying hard not to overthink every checkbox.

 

I couldn't find any hard evidence that either is beneficial. Bizarre to me that identical cars +/- these options haven't been tested back-to-back. Even if by Porsche on a track. Give us something.

On the contrary, there have been reports that both can make the car feel unnatural at speed. And the improved 18" of RAS turning radius at low speed was just kind of comical to me. Since it's also more stuff to break, I declined both.

Edit: forgot about the $2500 Li battery that RAS also adds. No thanks.

 

I got both on my '23 GTS. I'm going to track mine, so I figured any performance gain was something I wanted. You're already getting a GTS, don't cheap out too much.

 

Neither is a must have.

PDCC is amazing in Cayennes. The 911 in stock form turns flat and doesn't need help.

RAS is a polarizing topic that has been discussed ad nauseam. Do a search. Bottom line: the primary benefit is easier to park, easier to U turn and faster in sweepers at the track. The drawbacks include a mandatory $2,500 battery, extra weight, and one more gizmo to break and to make the car drive you instead of you driving the car.

 

>> RAS is a polarizing topic
I'll say. Bottom line is there is no 'bottom line'. Here's Porsche showcasing it on the 992 chassis highlight deck. Excuse me while I go call Porsche technical marketing to tell them they don't know what they are talking about. I'll be right back.

 

Dude, you never fail to make me laugh. Now you're arguing with your own argument. And do you know the meaning of "bottom line"? Because there's a bottom line for everything.

Don't have a stroke okay? Lol.

 

I don't consider either to be a must-have on a GTS.

And if track performance is why you're considering it, unless you're a professional driver, the rate limiting step on your lap times will be you, not lack of RAS or PDCC.

 

Except they have


And for those that keep bringing up how a 911 doesn't need the system because it has a lower CG than say, a Cayenne, PDCC is not just for roll stabilization, it has benefits in normal straight-line driving as well. It is replacing a static, fixed anti-roll bar with one that can adapt to road conditions and driving demands. It increases both comfort and cornering stability depending on what it is being asked to do.

 

"Must Have", absolutely not.
I specked both on my new 911s for the following reasons. I like the tighter turning radius as my driveway and garage are rather tight. I wanted the softer straight line ride that the PDCC offers and lastly I like the flat cornering aspect when I do make it to the mountains from time to time. I also did not want to have regrets on options since I was ordering this car just for me. Are both worth $5K? Probably not, but I am glad I got them. YMMV.

 

Let's play a fun 992 'technology' game shall we?. Here's a quiz, spot the similarities...

• VTG - (Active) Variable Turbocharging Geometry
• PASM - Active suspension
• PADM - Active motor mounts
• PSM - Active stability management
• PTV - Active torque vectoring
• PSE - Active exhaust
• PDLS+ - Active headlights
• VarioCam Plus - Active valve timing and lift
• RAS - Active rear steering

Notice a pattern? The notion that deleting RAS makes the 992 more 'analog' and has 'less nannies' is simply absurd. Porsche's entire engineering philosophy for the 992 is to expand the performance envelope via digital enhancement of mechatronic systems. Which of the 60+ separate controllers and tens of millions lines of code should we delete to make the experience more 'pure'?

You want 'analog', go drive an Elise.

 

Not to be pedantic but if you reduce one item from a list, then that list is by definition "less" than it was before.

So if you take out RAS then the 911 is, by definition, has "less nannies" and thus "more analog"