Have chosen the PASM with Air as well for the same reason (from CT) but don't know if 1 inch either way really makes much of a difference. Especially with the 10 mm down for sport - that's less than half an inch (for perspective, that's about the width of your index finger side on)Our order includes the air suspension, mainly for the ride height considerations. The air cars start out 15mm lower than the steel spring cars, and offer -10mm in sport, and +40mm in off-road mode. So net differences between air and steel, you can go 1" higher and 1" lower than a steel spring car, meaning better handling on road, and better clearance off road. We see a true four seasons here in Colorado, so the height is appreciated in the snowy seasons, and not needed when bombing down a back road in the summertime. For me it's a must-have option.
I think the stat to consider is center of gravity height. Here's some data related to CoG height and it's effect on the speed threshold before a car lifts two tires off the ground - i.e. the vehicle is about to roll over.Have chosen the PASM with Air as well for the same reason (from CT) but don't know if 1 inch either way really makes much of a difference. Especially with the 10 mm down for sport - that's less than half an inch (for perspective, that's about the width of your index finger side on)
Any aerodynamic / auto engineers want to comment?
Excellent info about the Tesla, which I agree would seem to have a low CoG due to the ridiculous battery weight and placement. If the Macan spec is in the range you suggest, then it seems the real point of air is ground clearance, chassis leveling when hauling/towing, and ease of loading cargo.The Tesla Model S (with its battery-laden floorpan) has a CoG of 18". I think it's safe to assume the Macan has a much higher CoG
If we look at the portion of that graph from 20" CoG and higher, we see that every 10" CoG difference results in about 5 mph difference. So 2" (min-max travel on air suspension) will be about 1 mph difference.
edit: and this is assuming that the tyres have infinite grip - if the tyres run out of grip before the inside wheels lift (i.e. as you would expect) then I'm not sure the graph can be used...
Where do you get this info? I don't believe the ride would get that rough with 20", but 21" wheels would be better off with PASM (not air suspension too), which is why it is standard on the Turbo which starts off with the bigger wheels. I do not believe I would need Air Susp as long as I have PASM. From personal experience, Porsche's PASM is very nice in all driving conditions. In fact, I believe it would be advisable to consider PASM if you have Air Suspension because the potential lower ride might call for modulating the ride, which PASM does very well.I'm taking both the air suspension and PASM since apparently the ride on the 20'' wheels could get quite rough without it.
Most of the Cayenne air suspension issues appear to only be on models over 5 years old. Knowing me I'll have replaced the Macan by then so reliability isn't a concernYou can't have AS without PASM. From all accounts in the 958, AS transforms the ride and many say its a must have. I have no personal experience with either, my 958 is on 19s with the standard steel springs and the ride is great IMO. I want to go 20s w the Macan and am strongly considering AS, but my concerns are potential long term cost of issues outside of warranty. Decisions...