My JDM car has those stupid plastic wind deflectors over the a-pillars and top of the windows. Looks like they're stuck on with double sided tape as well as screw clamps. I'm reckoning a screwdriver will deal with the latter but does anyone recommend a particular solvent for releasing the double-sided tape's grip?

Cheers, etc...

 

just normal paint thiners work well.

 

Use a hot air gun (hair drier) it softens the adhesive, then peel of slowly still applying the hot air that’s what I did they came of nearly perfectly then just used ordinary thinners to remove any residue.
Tony