Well from what I had found for the Camaros with either tail light or the honeycombs on Firebirds it took buying Triton V3? LED towers at what they said was $100-120 a pair at the time to match or somewhat exceed halogens in sunlight. With how the LT1 Firebird lights are done I don't see how it could pose as big an issue since there's the reflector jewels and the outside lense is clear, where with the Camaros and honeycombs the lenses are thick coloured plastic like most other tail lights of the time. I've tried finding recent information but it seems no one really goes into that anymore.
One of the techs at Hyundai dealership is an ex Audi tech and he talked to him about them and got the green light on that particular model and engine/trans combo so I dunno, I really haven't looked into them. He's also considering a fourth generation Subaru Legacy 2.5 GT or a Mazdaspeed6, he's damned an determined to have AWD with 250+ horsepower. For what I don't know since even the Firebird on summer tires makes an acceptable winter car here. I understand wanting a comfy alternative or something not RWD should it literally snow in Hell in which case I suggested a late fourth gen Maxima like he had before; for one he liked them and he knows them inside and out, they're reliable, adequately powerful, comfortable, and manual models can be had for nothing so a low 100K model in nice shape could be had for under $3,000. Oh and it's FWD so it'll handle any "severe" winter weather we get with poise and grace, "BUT I WANT AWD!"