The air dose have its benefits. Self leveling and lifting the truck off road. But I do t think a better ride is one of them. If I could afford a new defender I would definitely want a coil spring 90.
06 coils and 08 air. The 08 has KO2 witch are the worst tire on the planet. 06 has Michelin’s LTX’s that are a joy. So that plays to some of it for sure.
It’s been done. Was not a ton better. air is a utility thing. Lift, leveling And stuff like that it’s a dampers that make the ride. I’ve never thought the Discovery 3’s were up to snuff on any 3 I’ve been in. I’m sure it’s better in LR4s and range rovers but the LR3 is pretty rough. the 2010 Grand Cherokees air suspension was light years ahead of Land rover in on road driving comfort.