What would they sound like in real life?

Purely for amusement. I know there's a thread as to what the TMMC chassis relate to the real life manus, so I propose this question. What would the manufacturers from the TM Master Cup Series sound like in real life? That being the exhaust note or engine sound. Would they sound like a V6 or the rumble of the V8 we all come accustomed to? I can give you some examples:

Saar Tyrant/Tyrant MS/Eagle - Chevy Monte Carlo and Impala SS
Tremwell Knight - Pontiac G8
Inglesby Flashback/Type M - Dodge Charger Daytona R/T
Lenard Q9 - Ford Taurus SHO
Lenard R37 - Ford Mustang GT
Calton-Morel Nova - Lexus LSF, maybe?
Calton-Morel Corsair - Cross-breed of Porsche 911 GT3
Nemoto Celerox - Subaru Impreza WRX, maybe?
Volpi SR560/VC02/VC03 - Ferrari 550/475 GTC/599 GTB?
Gasnier Dragoon - Citroen variants
STS Arrow - Aston Martin V12 Vanquish
Corsa 313T - I hate to say it, but it's a Maseratti variant
Katzev KE01 - Koenigsegg CCXR
Juneau Royale/AMX-5/S1/S2 - ?
Gessler MTR-94 - Mercedes SLR McLaren
Bolden Chaser - Very much Olds Cutlass 442 or Aurora
EFR Journey/LSX - More in the vein of Buick Grand National

ARLA Universe:
Cromwell/CS - ?
Xenos Hilt - Honda hybrid?
Genesis Prot - Very much in the vein of Tesla
Karl, Inc. Revolution - ?
Kivette Spade - Pretty similar to WRX
Duncan - Olds 442! What more could this sound like?
Raptor Compet - SSC Ultimate Aero

Now for the Indepdents:
Fortner FS260 - Cadillac CTS
Tonare Thunder - Corvette ZR1
Omecha MA01/MA02 - Since there's no equal street version, they would sound like the Goody's Dash cars.
Lycoia Brute - Mustang/Camry crossover
Tolyatti - Wysstec Mirabeau
Casari/Tutino - Pagani Zonda

For the ARLA Thunder Trucks:
Saar Nebraska - Chevy Silverado
Cromwell CTR - ?
Karl, Inc. Pioneer - ?
Optic Siege - V8 PT Cruiser?
Spiedel Drone - ?
Fortner C-Series - Chevy SSR hybrid

The cars and that I marked with ? are unknown.

I'd imagine a Lenard Q9 would be like a Ford Fusion Sport. Or a Taurus SHO (the new one).

Tonare Thunder - Corvette ZR1

Fortner, my car's engine sounds more like a Mustang/Camry Mix, just a heads up

I figured out some missing links for Volpi, STS, Corsa and Katzev. Still need to find out what the Cromwell, Karl, Inc., Juneau, and Spiedel models would sound in real life.