Lexus LFA

The benchmark most engine-sound lists are measured against. The bespoke 4.8-liter V10 uses a 72-degree bank angle and can run from idle to 9,000 rpm in about six-tenths of a second, so the note climbs faster than most cars can change pitch. Lexus also shaped the intake surge tank with tuned walls and ribs borrowed from instrument design, treating the induction roar as part of the sound rather than noise to hide. Yamaha is often given the credit for the exhaust note, but that story is disputed; the engine's layout does most of the work. Only 500 were sold, so hearing one in person is rare.