this is a hard one actually.
- Gen4 had (seemed) to have softer chairs and different fabric versus the 4.5. the Gen4' I've seen has a different color texture fabric, looks better versus the plain fabric (harder) in the Gen4.5.
- Gen4 (earlier) models had 14" wheels (standard) on the I4 versus the Gen4.5 having standard 15" wheels and 16" on V6 XLE models. Earlier 'CE' trim Camry (gen4) had option for manual windows and cheaper interior. No built in antenna in glass (had a rear antenna)
- Gen4 (1997) had a funky design with the front passenger arm rest on the door (power window switch in front of door lock?) same design from 98-01 though.
- Gen4 (1997-1999) I think the chair gear wears out (at lease my friends with the earlier ones Gen4 has this issue) where chair may go recline randomly. I have not seen this with a Gen4.5, but maybe time will start having it wear out too.
- Gen4 had a one piece headlight versus the day light saving/highbeam + headlight on Gen4.5
- Gen4.5 had soft touch button for circulation air (inside or out) versus the Gen4 on the LE trim Camry (I believe)
- Gen4.5 had option for JBL. I have not seen a Gen4 (97-99) with JBL yet.
- Gen4 has aftermarket clear 'turn signal'. I have not seen a Gen4.5 with aftermarket clear 'turn signal'
- Gen4 had the anniversary edition which had chrome trim on the side plastic modeling. Inside was the same, basically an LE with very minor changes, leather steering wheel, and it's own set of alloys (15" I believe) . The Gen4.5 had the 'collector' edition w/ two tone/XLE that had it. I've seen the Gen4.5 as the 'Gallery' edition with special rims and two tone.
All in all, I like the Gen4 rear tail lights and overall side look. The Gen4.5 has a better front bumper but I don't care for the larger headlights but do like the DLR w/ headlight design. Gen4.5 in Asia and Europe market had a factory installed fog lamp, looks like the ES300. Gen4 had fog lamps too but seem a bit smaller and not clear (similar to the earlier ES300 Gen3 to Gen3.5). Interior is pretty much the same except for the frabic.
Either one would be nice though.
