Sound mod list:

Sound 1: 
-Nissan 240SX

Sound 1 (Tuned):
-For Nissan 240SX tuned variants

Sound 2:
-Nissan Silvia S15

Sound 2 (Tuned): 
-For Nissan Silvia S15 tuned variants

Sound 3:
-Toyota Supra A70 (MK3)
-Toyota Supra A80 (MK4)

Sound 3 (Tuned):
-For some Toyota Supra A80 (MK4) tuned variants

Sound 4:
-BMW M3 E46

Sound 5:
-BMW M5 E39

Sound 6:
-Audi TT
-Audi A3

Sound 7:
-Audi RS6 (C5)
-Audi S4 (B6)

Sound 8:
-Honda DelSol
-Honda Civic EM1

Sound 8 (Tuned Variant):
-For Honda DelSol tuned variants
-For Honda Civic EM1 tuned variants

Sound 9:
-Honda Civic EK9

Sound 10:
-Chevrolet Camaro SS 35th Anniversary
-Pontiac Firebird WS6 Trans Am
-Pontiac GTO Coupé

Sound 11:
-Pontiac G8 GXP

Sound 12:
-Spyker C8 Laviolette
-Spyker C8 Alieron

Sound 13:
-Porsche 911 GT2 RS (997)
-Porsche GT1 (996)

Sound 14:
-Porsche 911 Turbo S (991.2)
-Porsche 911 Targa 4S (991.2)
-Porsche 911 Carrera 4S (991.2)
-Porsche 911 GT2 RS (991.2)
-W Motors Lykan Hypersport

Sound 15:
-Ascari KZ1

Sound 16:
-Maserati Ghibili
-Maserati Levante

Sound 17:
-Maserati GranSport
-Maserati Spyder Cambiocorsa

Sound 18:
-Maserati Quattroporte GTS GranSport

Sound 19:
-Maserati Quattroporte GT S
-Maserati GranTurismo S
-Alfa Romeo 8C Competizione	
-Alfa Romeo 8C Spyder	

Sound 20:
-Mclaren P1