+1 on previous comments. I never change my saddle position once it's been set correctly. And I was also advised by the LBS to use a torque wrench if I did want to move and re-tighten the collar.
I used to be able to get either my road bike or my mountain bike into the trunk of my old Camry by putting the rear seats down (there was an opening in the back wall of the trunk behind the seats, not the full width of the car but wide enough). I removed the front wheel, turned the handlebar and put the bike in front-first so the front fork went through the opening. I could also fit the whole bike in the trunk without putting the seats down if I took off both wheels. Either way the saddle never got in the way. Now I have a hatchback (Prius) with rear seats that fold flat so it's even easier.
Is your saddle very high when you ride? Mine is about even with the handlebars, so not too high. Maybe that makes it easier.
- Gray 2010 carbon WSD road bike, Rivet Independence saddle
- Red hardtail 26" aluminum mountain bike, Bontrager Evoke WSD saddle
- Royal blue 2018 aluminum gravel bike, Rivet Pearl saddle
Gone but not forgotten:
- Silver 2003 aluminum road bike
- Two awesome worn out Juliana saddles