I think it would be really cool to see drag races in GT5.
Honestly, it's something very exciting with brutal power and demands alot of the car. If GT5 could simulate this well it would be VERY exciting trust me.
I hope they get the mix just right for once, I hope they will make racing like it should be, completely with sound, visuals and REAL physics instead of the other-way-around physics I have noticed lately. Some phyisics in GT4 are just completely the oposite of RL.
If drag racing is include I would really want to see the the stress on the car, the stress on the tyres, the amazing noise of those massive engines, and how it looks to go that fast. Together with a realistic environment.
For GT5, it would be really nice to just use the space of the PS3 to make GT4 better but more importantly: more complete. GT4 is still very limited if you ask me. And to come to a conclusion, I think tyres should be simulated well that way. More different types of tyres. And I would love to burn some skidmarks with those extra sticky drag slicks