This is the file of the engine sound set-up, but, if you want to add/rework the Regina on TLAD; don't forget to add this file
on the "policeScannerModelSound" this "EP1_SFX_E1_SCANNER_MODELS_E1_SCANNER_REGINA" file; so you won't hear the police chat 
mention erronously the vehicle as an "beaten Declasse Rancher" anymore:

[regina]
structType = 0
field_1 = 41453
flags = 0x98629 
floatAsInt_A = -16.0
floatAsInt_E = 0.0
engineLowSound = VEHICLES_ENGINE_RESIDENT_V_STYLE_2_ENGINE_LOW
engineHighSound = VEHICLES_ENGINE_RESIDENT_V_STYLE_2_ENGINE_HIGH
exhaustLowSound = VEHICLES_ENGINE_RESIDENT_V_STYLE_2_EXHAUST_LOW
exhaustHighSound = VEHICLES_ENGINE_RESIDENT_V_STYLE_2_EXHAUST_HIGH
revsOffSound = VEHICLES_ENGINE_RESIDENT_V_STYLE_2_REVS_OFF
field_26 = 630.0
field_2A = 170.0
floatAsInt_2E = -4.65
floatAsInt_32 = -0.61
field_36 = 3000.0
field_3A = 1000.0
floatAsInt_3E = -4.0
floatAsInt_42 = 3.0
field_46 = 800.0
field_4A = 200.0
floatAsInt_4E = -3.0
floatAsInt_52 = 0.0
field_56 = 140.0
field_5A = 80.0
floatAsInt_5E = 3.0
floatAsInt_62 = 4.0
floatAsInt_66 = 0.5
field_6A = 50.0
field_6E = 50.0
floatAsInt_72 = 0.0
floatAsInt_76 = -18.0
engineWaveShape = ENGINE_WAVE_SHAPE
floatAsInt_7E = 0.0
exhaustWaveShape = EXHAUST_WAVE_SHAPE
floatAsInt_86 = 0.0
floatAsInt_multiplier1200_8A = -0.666667
floatAsInt_multiplier1200_8E = 0.833333
engineIdleLoopSound = VEHICLES_ENGINE_RESIDENT_V_STYLE_2_ENG_IDLE_LOOP
exhaustIdleLoopSound = VEHICLES_ENGINE_RESIDENT_V_STYLE_2_EX_IDLE_LOOP
floatAsInt_multiplier1200_9A = -0.166667
floatAsInt_multiplier1200_9E = 1.0
transmissionSound = VEHICLES_TRANSMISSION_1
floatAsInt_A6 = -8.0
floatAsInt_AA = 4.0
sound_AE = VEHICLES_ENGINE_RESIDENT_NULL_LOOP
floatAsInt_B2 = -6.0
floatAsInt_B6 = 0.0
exhaustPopSound = NULL_SOUND
airIntakeSound = V_STYLE_INTAKE_QUIET
floatAsInt_multiplier1200_C2 = 0.5
floatAsInt_multiplier1200_C6 = 1.0
dumpValveSound = NULL_SOUND
startSound = STREAMED_VEHICLES_V_STYLE_2_V_STYLE_2_START_DIST
hornSound = BROKEN_HORN_EMPEROR
openSound = VEHICLES_EXTRAS_MUSCLE_CAR_OPEN
closeSound = VAN_DOOR_CLOSE_RND
trunkOpenSound = VEHICLES_EXTRAS_MUSCLE_TRUNK_OPEN
trunkCloseSound = VEHICLES_EXTRAS_VAN_TRUNK_CLOSE
field_E6 = 0.5
suspensionUpSound = SUSPENSION_UP
suspensionDownSound = SUSPENSION_DOWN
field_F2 = 0.4
field_F6 = 1.0
policeScannerManufacturerSound = POLICE_SCANNER_MANUFACTURER_MAN_DUNDREARY
policeScannerModelSound = POLICE_SCANNER_MODEL_MOD_MINIVAN
policeScannerVehicleCategorySound = POLICE_SCANNER_VEHICLE_CATEGORY_STATION_WAGON
gearTransmissionSound = VEHICLES_ENGINE_RESIDENT_GEAR_TRANSMISSION
floatAsInt_multiplier1200_10A = 0.333333
floatAsInt_multiplier1200_10E = 1.5
floatAsInt_multiplier1200_112 = 1.0
floatAsInt_116 = 0.0
field_11A = 50
floatAsInt_11E = 0.0
floatAsInt_122 = 4.0
floatAsInt_126 = 5.0
jumpLandSound = VEHICLE_JUMP_LAND
field_12E = 31
field_132 = 36
ignitionSound = IGNITION
engineShutDownSound = VEHICLES_ENGINE_RESIDENT_SHUT_DOWN_1
field_13E = 2
field_13F = 0
field_140 = 1
field_141 = 4
indicatorVehicleOn = VEHICLES_EXTRAS_INDICATOR_OLD_CAR_ON
indicatorVehicleOff = VEHICLES_EXTRAS_INDICATOR_OLD_CAR_OFF
engineCoolingFan = NULL_SOUND
handbrakeSound_14E = NULL_SOUND
sound_152 = NULL_SOUND
sound_156 = NULL_SOUND
handbrakeSound_15A = VEHICLES_EXTRAS_V_ENGINE_HANDBRAKE
field_15E = 1
field_15F = 0
field_160 = 3

[regina2]
structType = 0
field_1 = 42061
flags = 0x2AA629 
floatAsInt_A = -10.0
floatAsInt_E = -3.0
engineLowSound = VEHICLES_ENGINE_RESIDENT_V_STYLE_2_ENGINE_LOW
engineHighSound = VEHICLES_ENGINE_RESIDENT_V_STYLE_2_ENGINE_HIGH
exhaustLowSound = VEHICLES_ENGINE_RESIDENT_V_STYLE_2_EXHAUST_LOW
exhaustHighSound = VEHICLES_ENGINE_RESIDENT_V_STYLE_2_EXHAUST_HIGH
revsOffSound = VEHICLES_ENGINE_RESIDENT_V_STYLE_2_REVS_OFF
field_26 = 493.88
field_2A = 100.0
floatAsInt_2E = -1.82
floatAsInt_32 = 1.8
field_36 = 2400.0
field_3A = 1000.0
floatAsInt_3E = -5.46
floatAsInt_42 = 1.42
field_46 = 330.0
field_4A = 100.0
floatAsInt_4E = -1.42
floatAsInt_52 = 1.42
field_56 = 160.0
field_5A = 100.0
floatAsInt_5E = 5.0
floatAsInt_62 = 6.0
floatAsInt_66 = 1.0
field_6A = 50.0
field_6E = 50.0
floatAsInt_72 = 0.0
floatAsInt_76 = -12.0
engineWaveShape = ENGINE_WAVE_SHAPE
floatAsInt_7E = 0.0
exhaustWaveShape = EXHAUST_WAVE_SHAPE
floatAsInt_86 = 0.0
floatAsInt_multiplier1200_8A = -0.5
floatAsInt_multiplier1200_8E = 1.41667
engineIdleLoopSound = VEHICLES_ENGINE_RESIDENT_V_STYLE_2_ENG_IDLE_LOOP
exhaustIdleLoopSound = VEHICLES_ENGINE_RESIDENT_V_STYLE_2_EX_IDLE_LOOP
floatAsInt_multiplier1200_9A = 0.0
floatAsInt_multiplier1200_9E = 0.333333
transmissionSound = VEHICLES_TRANSMISSION_1
floatAsInt_A6 = -8.0
floatAsInt_AA = 4.0
sound_AE = NULL
floatAsInt_B2 = 0.0
floatAsInt_B6 = 0.0
exhaustPopSound = NULL_SOUND
airIntakeSound = AIR_INTAKES_MULTI_QUIET
floatAsInt_multiplier1200_C2 = 0.0
floatAsInt_multiplier1200_C6 = 0.875
dumpValveSound = NULL_SOUND
startSound = STREAMED_VEHICLES_V_STYLE_2_V_STYLE_2_START_DIST
hornSound = BOBCAT_HORN
openSound = VEHICLES_EXTRAS_SALOON_OLD_OPEN
closeSound = MUSCLE_DOOR_CLOSE_RND
trunkOpenSound = VEHICLES_EXTRAS_OLD_SALOON_TRUNK_OPEN
trunkCloseSound = VEHICLES_EXTRAS_MUSCLE_TRUNK_CLOSE
field_E6 = 0.5
suspensionUpSound = SUSPENSION_UP
suspensionDownSound = SUSPENSION_UP
field_F2 = 0.4
field_F6 = 1.0
policeScannerManufacturerSound = POLICE_SCANNER_MANUFACTURER_MAN_DUNDREARY
policeScannerModelSound = POLICE_SCANNER_MODEL_MOD_MINIVAN
policeScannerVehicleCategorySound = POLICE_SCANNER_VEHICLE_CATEGORY_STATION_WAGON
gearTransmissionSound = VEHICLES_ENGINE_RESIDENT_GEAR_TRANSMISSION
floatAsInt_multiplier1200_10A = 0.333333
floatAsInt_multiplier1200_10E = 1.5
floatAsInt_multiplier1200_112 = 0.666667
floatAsInt_116 = 0.0
field_11A = 45
floatAsInt_11E = 0.0
floatAsInt_122 = 3.0
floatAsInt_126 = 8.0
jumpLandSound = VEHICLE_JUMP_LAND
field_12E = 31
field_132 = 36
ignitionSound = IGNITION
engineShutDownSound = VEHICLES_ENGINE_RESIDENT_SHUT_DOWN_1
field_13E = 1
field_13F = 0
field_140 = 1
field_141 = 9
indicatorVehicleOn = VEHICLES_EXTRAS_INDICATOR_OLD_CAR_ON
indicatorVehicleOff = VEHICLES_EXTRAS_INDICATOR_OLD_CAR_OFF
engineCoolingFan = NULL_SOUND
handbrakeSound_14E = NULL_SOUND
sound_152 = NULL_SOUND
sound_156 = NULL_SOUND
handbrakeSound_15A = VEHICLES_EXTRAS_V_ENGINE_HANDBRAKE
field_15E = 1
field_15F = 0
field_160 = 1