PDCC and Rear Axle Steering
Discussion
Both of these are standard on my car. I don't have strong views on PDCC, but the rear-wheel steering I am a big fan of. The 991.2 is not a small car, and my model is not particularly light, but it feels both nimble in town and stable once up to speed. I suspect that RWS has a lot to do with the low-speed agility, if not some of the higher-speed handling characteristics. By way of disclaimer, I don't have a huge amount of experience of other 991s to which to compare this car (test drive experience only), but it handles well in town for any car of a comparable size which I have driven.
I'm having the same dilemma now, but from what I have been reading SPASM and Rear Axle should be best for my needs / wants. I'm hoping to get some demo cars to test or once my order has been placed, I can review these PEC like I did with my CGTS with X73 Vs PASM which ironically SPASM is X73 with PASM.
AndyCGTS said:
I'm having the same dilemma now, but from what I have been reading SPASM and Rear Axle should be best for my needs / wants. I'm hoping to get some demo cars to test or once my order has been placed, I can review these PEC like I did with my CGTS with X73 Vs PASM which ironically SPASM is X73 with PASM.
Snap! I'm keen to find out so can make a decision before final lock down. elucius said:
I am genuinely interested in other forum members views as to whether to spec these or not in a 991.2 GTS
I've never had RWS, I have had PDCC and wouldn't again.They may have improved it now, but in 2012 there was a problem with it. It would give the sensation of over steer at high speed in long, fast bends. Not nice. It also did this weird correction thing on uneven roads which made me feel seasick. Other PDCC owners reported similar.
I think PDCC was one of the things they used to get a fast 'ring time, but on the road it was rarely required and no fun to live with.
13m said:
elucius said:
I am genuinely interested in other forum members views as to whether to spec these or not in a 991.2 GTS
I've never had RWS, I have had PDCC and wouldn't again.They may have improved it now, but in 2012 there was a problem with it. It would give the sensation of over steer at high speed in long, fast bends. Not nice. It also did this weird correction thing on uneven roads which made me feel seasick. Other PDCC owners reported similar.
I think PDCC was one of the things they used to get a fast 'ring time, but on the road it was rarely required and no fun to live with.
I have PDCC on my '15 GTS and like it. Drove one car with and one without it back to back at Silverstone and just felt like the car that had it held the road in corners better. Makes the car feel slightly space-age, which I like but others may not. I think the problems were ironed out in later cars so I'm sure would be fine in the .2. I've done over 18k miles in mine and never had any queasiness or oversteer horror.
I would absolutely definitely get RWS.
I would absolutely definitely get RWS.
footsoldier said:
RWS is a great development, I would always get it now.
It doesn't interfere with driver inputs, just makes the car work better - It helps turn in, amd agility
the RWS is a fully active system though isn't it? the computer adjusts the angle on the rear wheel as the sensors determine how much is necessary - or so it seems per a couple of articles I've read about it unless that's just specific to the Panamera as I think the last rws article was about that car in particular. Pretty impressive if it doesn't interfere with the driver or feel unnatural.It doesn't interfere with driver inputs, just makes the car work better - It helps turn in, amd agility
isaldiri said:
footsoldier said:
RWS is a great development, I would always get it now.
It doesn't interfere with driver inputs, just makes the car work better - It helps turn in, amd agility
the RWS is a fully active system though isn't it? the computer adjusts the angle on the rear wheel as the sensors determine how much is necessary - or so it seems per a couple of articles I've read about it unless that's just specific to the Panamera as I think the last rws article was about that car in particular. Pretty impressive if it doesn't interfere with the driver or feel unnatural.It doesn't interfere with driver inputs, just makes the car work better - It helps turn in, amd agility
The Panamera on the other hand is an utterly brilliant car! When the Grand Turismo comes out that might be my ideal (family) car.
isaldiri said:
the RWS is a fully active system though isn't it? the computer adjusts the angle on the rear wheel as the sensors determine how much is necessary - or so it seems per a couple of articles I've read about it unless that's just specific to the Panamera as I think the last rws article was about that car in particular. Pretty impressive if it doesn't interfere with the driver or feel unnatural.
Actually, I should fine tune my comment...It doesn't feel unnatural at all on the way into the corner, it just feels like a very sharp turn-in.
On the RS, it does feel unnatural on the exit - you can feel the rear moving around, (almost feels like the treadblocks have overheated) This is only flat out on track though, it wouldn't happen very often on the road.
On the R, the RWS is reconfigured, and doesn't have the same exit issue, it just makes the car feel more agile.
So, if I was ordering a new car now, I'd definitely have it, as it makes steering response much sharper.
I haven't heard any owners say different - almost all think the RWS is a good step forward.
Edited by footsoldier on Monday 16th January 23:26
footsoldier said:
Cheib said:
.
The Panamera on the other hand is an utterly brilliant car! When the Grand Turismo comes out that might be my ideal (family) car.
I've git my name down for one to replace RS6 - will be launched at Geneva, delivered in September, (and I'll. be having RWS!)The Panamera on the other hand is an utterly brilliant car! When the Grand Turismo comes out that might be my ideal (family) car.
I also need to make a decision on Rear Axle Steering (going to forget about PDCC).
I'm wondering if the difference really is better turn in, or is just less steering input needed?
Would I notice a difference on normal A or B roads (that I don't know) on a test drive where the car won't be near it's limit? I say this because these cars have such good handling that I might only notice the difference on a road I know really well or on the track.
Does it take away the 'natural' feel of cornering?
Does it need high corner speeds to come into it's own or is it noticeable at all corner speeds? (I know it also helps parking and turning but I think I would be fine there without it).
Sorry for all the questions, I'm just trying to get a better idea of what to expect from it to help me decide if I want it.
I'm wondering if the difference really is better turn in, or is just less steering input needed?
Would I notice a difference on normal A or B roads (that I don't know) on a test drive where the car won't be near it's limit? I say this because these cars have such good handling that I might only notice the difference on a road I know really well or on the track.
Does it take away the 'natural' feel of cornering?
Does it need high corner speeds to come into it's own or is it noticeable at all corner speeds? (I know it also helps parking and turning but I think I would be fine there without it).
Sorry for all the questions, I'm just trying to get a better idea of what to expect from it to help me decide if I want it.
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