This is VERY close. The actual models didn't have a hood scoop and the LX 5.0's didn't have flared ground effects or overdone spoilers (the GT's did). But I'm done burning credits on this for now.
Staying in SDXL worked much better than fiddling around in 1.5 or 2.1. SD 1.5 kept wanting to give me later-model 'Stangs, and 2.1 kept giving me unpredictable weird cars.