Graphically it's not much but it's enough, realistically the interior was probably a bit different at time, but all of them together, bop'ed, sound ajusted, with good physics... damn, no wonder why Bazza's legends are my all time favorite cars !
I appreciate you kept a lot of these looking period correct. Enables us to run the historical liveries with these colorful fictional versions. Makes the imagine wonder who these characters behind the wheel could be. Terrific work on these!
Most of the time, I try to make it logical : a japanese driver in a japanese car is more likely to have japanese sponsors, but an american driver not really, or if the brand is worldwide reknown or want to expend, etc... It's a bit of a process of "what if" on each of them. That, and fact-checking if the logos/branding is period correct haha