Jack is quite right. I believe the springs and shocks on my car are very close dimensionally to the Pantera. Mine are QA1 springs and shocks. The rear springs have a much lower rating because, of course there are two per side. The fronts are probably the Pantera REAR units (remember the front of a Longchamp is a LOT heavier than the front of a Pantera. All of mine were installed by Steve Wilkinson so he will likely have them, or at least be able to provide the details. He's in Italy until the 7th of March or so.