Sports car racing fans have come to know the sound of Corvette Racing’s menacing V8 engines as one of IMSA’s most unmistakable soundtracks. The punch to the chest delivered by the Corvette C7.R through the 2019 season, and all of its predecessors dating back to the program’s debut in 1999, was as unique as it was thrilling.

It makes the brand’s greatest shift with its mid-engine C8.R (pictured above) — which debuts in competition this week at the Rolex 24 At Daytona, featuring a fresh V8 motor with an entirely different voice — a new experience for Corvette fans. Thanks to the move to a flat-plane crankshaft in the 5.5-liter naturally-aspirated powerplants, the C8.Rs strike the ears with a higher pitch that, in typical Corvette Racing fashion, is unlike anything else in the field.

Which exhaust note sounds better? Take a listen to the C8.R from testing at the Roar Before The 24, and from a C7.R during December Daytona testing in 2016, and you decide.