alxman
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Appreciate the explanation. I’m somewhat new to EV’s (the Tesla is my wife’s car) and to Porsche (coming from driving BMW’s) and your willingness to share your expertise is greatly welcomed. I have learned so much already and will use your bookmarked posts probably as much as the car manual. Thanksdecelerating the car causes "weight transfer" - driving at the limits you can't have un-anticipated weight transfer - and one pedal driving makes the accelerator and the level of weight transfer unpredictable because the amount of regen varies with vehicle inertia…
I've driven on track with one-pedal driving in my 2018 Model 3 Performance and the variability of regen with regards to one pedal driving from lap to lap to lap is lap-time-consistency killer - because it's a different amount every time going into turn 2 @ Laguna Seca for example.
Consistent laps is a hallmark of a well designed car and an excellent driver - Porsche strives to produce a product that an excellent driver can squeeze excellent performance out of. Excellent drivers require the car to be predictable at the limits - and one pedal driving it not predictable at the limits - it's simply not.
I'm not saying Porsche is right on this car for the broad market - but there is no test driver in Porsche's employ that will give feedback during vehicle development and track testing that will suggest one-pedal drivign is what they want from the car…
given Porsche's history, focus, and goals - one pedal driving is not what you want for a vehicle with a high degree of control for weight transfer management which is what is required for consistent high performance driving.
- Accelerator make car go - get off of accelerator (lifting) off causes minor weight transfer - but always the same amount
- Brake pedal make car decelerate with a high degree of finesse possible is how one squeezes optimal lap times out of a course like the Nurburgring
- with a high degree of finesse possible there is minute levels of weight transfer control possible - this is nearly impossible with one-pedal driving
Having drivign both types of cars Porsche is not wrong…but htey are wrong about not having it be an option that can be turned off…
one pedal driving has no place/business in track driving given it's lack of predictability - but there could be a driving-mode you put hte car in that turns it off - Porsche's not quite there yet in terms of "mode"…and I'm not sure they will get there.
911's and Porsche's in particular are lauded by driving aficionado's for the level of driver control and this is their legacy - driving aficionado's will lambast Porsche for removing these control levels and that is their audience…ond pedal driving is not a thing in that audience…and it makes car control very difficult - Porsche is not going to make car-control difficult
take an ice-driving or rally driving course (3+ days at least) and then please explain to me your love of one pedal driving - we wont' be having that conversation.
none of this matters or can be experience in street driving - you must be pushing a vehicle hard to experience the "needs" at these sorts of situations - but one pedal driving is "not welcome" going into the braking zone of turns 2, 6, 8a, 11 @ Laguna Seca for example - and certainly not helpful in terms of "consistent" lap times - it makes the car unpredictable for the same inputs.
Professional drivers (not me or anywhere close to me) can provide consistent laps times on any circuit (consistent to less than 1/10th of a second variation) form lap to lap to lap to lap - it's amazing - they are paid for that consistency and the skills they have and awareness they have is amazing - that level of consistency requires consistency in the car's behaviors for the same actions/driver-inputs - in 14 years of hobby track driving I've not met a pro-driver that find one-pedal driving consistent enough to meet the requirements of their profession. It's like telling a chef to prep really great food with a dull knife and/or an oven with variable amounts of temperature control.
having driven the Taycan and Mode 3 at various california tracks, on track across the course of a day. The model 3 is a mess when it comes to lap times and consistency, and the Taycan was "a Porsche" and very consistent lap to lap to lap. One of the many reasons the Taycan was better on track was the lack of one-pedal driving the ability to provide minute levels of braking finesse with left foot braking…not possible with Model 3 and causes vehicle "errors" and lack of predictable outcomes.
Porsche will not design a car that is that inconsistent (even if it never comes up in street driving).
when drifting a 2021 911 GT3 Cupcar with studded ice tires on a complex technical ice-course at track speeds through the woods of finland where a mistake will be rewarded by hitting a tree one pedal driving is not your friend…both the CupCar and 911 GT3 in this picture were masterful and predictable - an absolute requirement for that level of driving - anything less is not a Porsche.
the gentleman above on the right _IS_ a driver hired by Tesla to do some of the early Plaid laps @ Nurburgring - and he was still employed by Tesla when this picture was taking in 2020. His opinions about one pedal driving and it affect on vehicle dynamics and predictability was at odds with his employer, but they couldn't dispute the impact it was having on laps times so he was continuing to work with Tesla to develop track mode - and one of the things track mode does is lessne/remove the amount of regen from one pedal driving.
anyways it's a driver/control and consistency of input concern which is why you wont' see it from Porsche anytime soon - especially if their next EV is the 718…where sports car feel and control with be of paramount importance.
YMMV and my $0.02 - but Porsche _IS_ morally opposed to one pedal driving - and their entire set of Professional text drivers and engineers are also - so there is "no voice" inside Porsche that is going to say "hey this one pedal driving really is better on the ring and we need to get that even better" - because factually it's not better, it had to be turned off.
sign up for an attend any multi-day rally school or ice driving school - Porsche's offerings are excellent - and after drifting cars (or Porsche's) for 2 or more days - none of you will come back fans of one-pedal driving - I promise you it's "not a feature" if you're driving off street.