Mostly agree with that Chris, but the ph3 spoiler is bolt on from the factory, but through the metal instead of the glass. And I've seen several L spec NADs with full ph3 bumpers, it seems just the early ph3 ones did still come with ph2 bumpers.
Also theres no mention of phase 4! At X reg phase 4's came out, this includes airbagged seats and fat headrests. 266mm Lucas front brakes and the GTi6 MC become standard across all models (except GTi6). Meridians gain rear electric windows. Front speakers now have separate tweeters (mounted in mirror covers) and mids, whereas the older ones are combined. There's probably some more I've forgotten - but for spec the ph4 is the one to go for.
Also theres no mention of phase 4! At X reg phase 4's came out, this includes airbagged seats and fat headrests. 266mm Lucas front brakes and the GTi6 MC become standard across all models (except GTi6). Meridians gain rear electric windows. Front speakers now have separate tweeters (mounted in mirror covers) and mids, whereas the older ones are combined. There's probably some more I've forgotten - but for spec the ph4 is the one to go for.