GTA IV/V vehicle additions

[SK6]

Just wondering, is there any chance any HD era car will be added? Some I would like to see are:

DF8-90/Saturn S-Series (IV)
Comet/Porsche 996 (IV/V)
Gauntlet/Dodge Challenger (V)
Coquette D5(Chevy Corvette C6 (V)
190Z/Datsun 240Z (V)
PMP-600/Chrysler 300C (IV)