Acura RDX and they fit fine. My full bag goes with me on every car test drive, if the clubs don’t fit I don’t even drive it. As others have said, shocking how little width some SUVs have in the trunk/boot area.
How did the distances compare between the JPX and TS4? I’ve been eyeing the TS4s as well, although happy with my Mizunos (both JPX921 Forged and MP20 HMB).