The best-sounding cars of all time have inline-5s and V-10s, and so we lined up the 2023 Audi RS3 with the Lexus LFA and a Porsche Carrera GT! First, Jason races the new Audi RS3 against an S3 to show how much quicker the 5-cylinder Audi is than its 4-cylinder brother. The RS3 has the world's only remaining 5-cylinder engine, so Jason raced it against the first-ever production gasoline 5-cylinder — in its semifinal form in a 1991 Audi 200 20V Quattro. Then it's time for a rev-off argument with Randy Pobst in a Porsche Carrera GT. Plus, an objective measurement of which is louder: CGT or LFA? With special thanks to 034 Motorsport for bringing out their Audi S4!